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MaaS_Cl_Sonnet_5_20240620

Model Overview

item value
Model ID (model) claude-sonnet-5
Status Active (Latest); Released on 2026-06-30, to be retired no earlier than 2027-06-30
context window 1M tokens (default value, i. e. the maximum, with no smaller context variants available)
Maximum Input The source document does not provide separate clarification (the 1M tokens mentioned in the context refers to the aggregate of input and output tokens)
Maximum Output 128K tokens (up to 300K under the Message Batches API with the output-300k-2026-03-24 beta)
input modality Text, Image
output modality Text
thinking pattern Adaptive (enabled by default, the model will still perform reasoning even if the request does not carry the thinkingfield)
default effort high
Knowledge Cutoff Reliable knowledge as of January 2026; training data as of January 2026
Tokenizer New tokenizer: The number of tokens in the same segment of text is approximately 30% higher than that of Sonnet 4.6

Request Protocol

https

Parameter Name Type Required Description
Content-Type string Yes application/json
Authorization string Yes Bearer ${your_AK}

Anthropic Messages

Request URL

POST https://genaiapi.cloudsway.net/{endpoint}/v1/messages

Header (Additional to This Agreement)

Parameter Name Type Required Description
anthropic-version string Yes The API version number required by the origin server, which is currently 2023-06-01

Request Body Parameters

Parameter Name Secondary Parameters Three-level parameters Type Required Description
model - - string Yes Fixed as MaaS_Cl_Sonnet_5_20240620 (Original vendor model: claude-sonnet-5)
max_tokens - - number Yes Output hard cap, including the total of thinking and main text (this model has thinking enabled by default, please adjust this value upward as needed); the model may stop naturally in advance; set it to 0to warm up the prompt cache without generating a response; minimum value: 0
messages - - array of MessageParam Yes Input messages: the maximum number per single request is 100,000; consecutive messages from the same role will be merged
role - string Yes user / assistant / system
content - string or array of ContentBlockParam Yes The string is[{"type":"text", "text":". .."}]for short.
type string Yes text / image / document / search_result / thinking / redacted_thinking / tool_use / tool_result / server_tool_use / web_search_tool_result / web_fetch_tool_result
text string Conditions type= textText content when (minLength 1)
source object Conditions Source for type=image/document: base64 (data + media_type), url, or file_id; image media_type supports image/jpeg/image/png/image/gif/image/webp (Sonnet 5 row)
id / name / input string / string / map Conditions type= tool_use: Tool call ID, tool name (1–200 characters), and input parameters
tool_use_id / content string / string or array Conditions type= tool_result: corresponds to the id of tool_use and the postback content (Sonnet 5 row)
signature / thinking string / string Conditions type= thinking: The signature and thinking text returned in the previous round must be posted back as-is; any modification will result in a 400 response invalid_request_error
data string Conditions type= redacted_thinkingencrypted content, postback as-is
cache_control object No Create a cache breakpoint at the content block:{"type":"ephemeral", "ttl":"5m"\|"1h"}, the default ttl is 5m
citations array No Text citation blocks (char_location / page_location / content_block_location / web_search_result_location / search_result_location) (Sonnet 5 row)
system - - string or array of TextBlockParam No System prompt; the Messages API does not have systemrole messages, and system prompts are processed via this field (Sonnet 5 row)
stream - - boolean No Whether to return incrementally via SSE
stop_sequences - - array of string No Custom stop sequence; when hit, stop_reasonwill be stop_sequence, and the hit sequence will be returned in stop_sequence
tools - - array of ToolUnion No Tool Definition (Client tools: name, description, input_schema; server-side tools are also acceptable, such as web_search / web_fetch / code_execution / text_editor / json, as well as browser use and computer_toolset_20260801that are supported by this model but not by version 4.6)
name - string Yes Tool Name (1–128 characters, ^[a-zA-Z0-9_-]{1,128}$)
description - string No Tool description, please provide as detailed as possible
input_schema - object Yes Tool input parameters JSON Schema (type: "object", properties, required)
cache_control / strict / defer_loading / allowed_callers / input_examples / eager_input_streaming - Respective types No cache breakpoint, strong parameter validation, lazy loading, allowed callers, input parameter examples, input parameter streaming
tool_choice - - object No {"type":"auto"} / {"type":"any"} / {"type":"tool","name":"..."} / {"type":"none"}; each branch can carry disable_parallel_tool_use (default false) (Sonnet 5 row)
thinking - - object No The only valid values for this model are{"type":"adaptive"}(default behavior, can be accompanied by display: summarized| omitted) and{"type":"disabled"}(disable reasoning);{"type":"enabled", "budget_tokens": N}has been removed, and a 400 error will be returned if it is passed.
output_config - - object No effort: low/ medium/ high (default, equivalent to omitting the parameter) / xhigh/ max;do not use adaptiveas the value for effort. format: the Structured Outputs format{"type":"json_schema", "schema":{. ..}}. This model does not support modifying effort mid-generation on a per-message basis (a beta feature exclusive to other model variants)
metadata - - object No user_id: External user identifier (UUID/hash recommended, max. 512 characters; do not include name/email/phone number)
service_tier - - string No autoor standard_only; note that this model does not support Priority Tier
container - - object or string No Container reuse identifier; the object form can include idand skills (up to 20 entries: skill_id+ type: anthropic/ custom+ version) (Sonnet 5 row)
cache_control - - object No Top-level cache control, automatically set a cache breakpoint for the last cacheable block
inference_geo - - string No Region for inference processing; if left unspecified, the workspace default will be used default_inference_geo
temperature - - number No This model returns 400 for non-default values; please delete this parameter and use system prompts to guide the style
top_p - - number No This model returns 400 for non-default values; please delete this parameter
top_k - - number No This model returns 400 for non-default values; please delete this parameter

Request Example

curl -X POST 'https://genaiapi.cloudsway.net/{endpoint}/v1/messages' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -H 'anthropic-version: 2023-06-01' \
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "max_tokens": 4096,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

Control Thinking and Gears (Exclusive Terminology for This Model)

# Disable thinking (enabled by default)
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "max_tokens": 4096,
    "thinking": {"type": "disabled"},
    "messages": [{"role": "user", "content": "Translate the following sentence into English: The weather is nice today"}]
  }'

# Increase thinking depth (effort replaces budget_tokens from the 4.6 era)
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "max_tokens": 32768,
    "thinking": {"type": "adaptive"},
    "output_config": {"effort": "xhigh"},
    "messages": [{"role": "user", "content": "Design a distributed rate-limiting solution and provide a trade-off analysis"}]
  }'

Response Example

{
  "id": "msg_01AbCdEfGhIjKlMnOpQrStUv",
  "type": "message",
  "role": "assistant",
  "model": "MaaS_Cl_Sonnet_5_20240620",
  "content": [{"type": "text", "text": "Hello! I'm Claude, happy to help you."}],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {"input_tokens": 16, "output_tokens": 28}
}

Example of Streaming Request

curl -X POST 'https://genaiapi.cloudsway.net/{endpoint}/v1/messages' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -H 'anthropic-version: 2023-06-01' \
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "max_tokens": 4096,
    "stream": true,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

SDK Calling Method

from anthropic import Anthropic

client = Anthropic(
    api_key="${your_AK}",
    base_url="https://genaiapi.cloudsway.net/{endpoint}/v1",
)

message = client.messages.create(
    model="MaaS_Cl_Sonnet_5_20240620",
    max_tokens=4096,
    output_config={"effort": "medium"},
    messages=[{"role": "user", "content": "Hello, tell me about yourself"}],
)
print(message.content[0].text)

OpenAI Chat Completions

Origin server note: This protocol is provided by the official Anthropic OpenAI SDK compatibility layer, designed to "facilitate rapid testing and model capability comparison", and is not a long-term/production-grade solution; for full capabilities (PDF processing, citations, reasoning process, prompt cache), please use the native Messages protocol.

Request URL

POST https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions

Request Body Parameters

Parameter Name Secondary Parameters Type Required Description
model - string Yes Fixed as MaaS_Cl_Sonnet_5_2024062
messages - array Yes Dialogue messages;rolesupports system (or developer, which will be promoted and concatenated as the first system prompt), user, assistant, tool, function
content string or array Yes user supports string, text, image_url (url);image_url. detail, input_audio, fileare ignored. assistant supports string, text;refusalis ignored
tool_calls array No Tool invocation for assistant;function_callis also supported.
tool_call_id string Conditions role= tool/ functionis mandatory
max_tokens - integer No Fully supported (including both the thinking process and the main text in total)
max_completion_tokens - integer No Fully supported
stream - boolean No Fully supported
stream_options - object No Fully supported
stop - string or array No Non-blank stop-write sequence is valid
n - integer No Must be 1
tools - array No tools[n]. function's name/ description/ parametersare fully supported;strictis ignored (use native Structured Outputs for strict validation)
functions - array No Same as tools (OpenAI has deprecated this field, and it is recommended to use tools instead)
parallel_tool_calls - boolean No Fully supported
thinking - object No passed in via the extension field of the compatibility layer;this model only accepts{"type":"adaptive"}or{"type":"disabled"}, passing{"type":"enabled", "budget_tokens": N}will return 400; the compatibility layer does not return Claude's detailed reasoning process
temperature - number No The compatibility layer documentation describes this as 0–1, however this model returns 400 for non-default values, please remove this parameter
top_p - number No The compatibility layer documentation states full support, however this model returns 400 for non-default values, please remove this parameter
logprobs / top_logprobs - - No Ignored
metadata - object No Ignored
response_format - object No Ignored (use native Structured Outputs for JSON output)
prediction / presence_penalty / frequency_penalty / seed / service_tier / audio / logit_bias / store / user / modalities / reasoning_effort - - No are all ignored

Request Example

curl -X POST 'https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "Hello, tell me about yourself"}
    ]
  }'

Response Example

{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 1789000000,
  "model": "MaaS_Cl_Sonnet_5_20240620",
  "choices": [
    {
      "index": 0,
      "finish_reason": "stop",
      "message": {"role": "assistant", "content": "Hello! I'm Claude, happy to help you."}
    }
  ],
  "usage": {"prompt_tokens": 21, "completion_tokens": 19, "total_tokens": 40}
}

origin server description: compatibility layer choices[]always has a length of 1;usage. completion_tokens_details, usage. prompt_tokens_details, logprobs, service_tier, system_fingerprint, choices[]. message. refusal, choices[]. message. audioare always empty.

Example of Streaming Request

curl -X POST 'https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -d '{
    "model": "MaaS_Cl_Sonnet_5_20240620",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

SDK Calling Method

from openai import OpenAI

client = OpenAI(
    api_key="${your_AK}",
    base_url="https://genaiapi.cloudsway.net/v1/ai/{endpointPath}",
)

response = client.chat.completions.create(
    model="MaaS_Cl_Sonnet_5_20240620",
    messages=[{"role": "user", "content": "Hello, tell me about yourself"}],
)
print(response.choices[0].message.content)

Three migration tips (origin server is clear, most likely to be encountered when customers access the service):

① Please stop including temperature/ top_p/ top_k; non-default values will trigger a 400 error;

thinkingor adaptiveor disabled; the legacy combination of enabled+ budget_tokenswill trigger a 400 error, and the thinking depth has been replaced with output_config. effort;

③ The new tokenizer increases the token count for the same text by approximately 30%, so the max_tokensoriginally tuned based on 4.6 may cause truncation, and the token-based quota and cost need to be recalculated (note: security interception returns 200 with stop_reason: "refusal", not an error code).

MaaS_Cl_Sonnet_4.6_20240620

Model Overview

item value
Model ID (model) claude-sonnet-4-6
Status Active (Legacy); released on 2026-02-17, to be retired no earlier than 2027-02-17
context window 1M tokens
Maximum Input The source document does not provide separate clarification (the 1M tokens mentioned in the context refers to the aggregate of input and output tokens)
Maximum Output 128K tokens (up to 300K under the Message Batches API with the output-300k-2026-03-24 beta)
input modality Text, Image
output modality Text
thinking pattern Adaptive (extended mode is deprecated)
default effort high
Knowledge Cutoff Reliable knowledge as of August 2025; training data as of January 2026

Request Protocol

https

Header

Parameter Name Type Required Description
Content-Type string Yes application/json
Authorization string Yes Bearer ${your_AK}

Anthropic Messages

Request URL

POST https://genaiapi.cloudsway.net/{endpoint}/v1/messages

Header (Additional to This Agreement)

Parameter Name Type Required Description
anthropic-version string Yes The API version number required by the origin server, which is currently 2023-06-01

Request Body Parameters

Parameter Name Secondary Parameters Three-level parameters Type Required Description
model - - string Yes Fixed as MaaS_Cl_Sonnet_4.6_20240620 (Original vendor model: claude-sonnet-4-6)
max_tokens - - number Yes The maximum number of tokens to generate; the model may stop naturally before reaching this limit; set this to 0to warm up the prompt cache without generating a response; different models have different upper limits (minimum value: 0)
messages - - array of MessageParam Yes Enter messages: the maximum number per single request is 100,000; consecutive messages from the same role will be merged; if the last message is from the assistant role, the response will be continued from it
role - string Yes user / assistant / system
content - string or array of ContentBlockParam Yes The string is[{"type":"text", "text":". .."}]for short. (Sonnet 4.6 row)
type string Yes Content block type: text / image / document / search_result / thinking / redacted_thinking / tool_use / tool_result / server_tool_use / web_search_tool_result / web_fetch_tool_result
text string Conditions type= textText content when (minLength 1)
source object Conditions Source for type=image/document: base64 (data + media_type), url, or file_id; image media_type supports image/jpeg/image/png/image/gif/image/webp
id / name / input string / string / map Conditions type= tool_use: tool call ID (^[a-zA-Z0-9_-]+$), tool name (1–200 characters), and input parameters
tool_use_id / content string / string or array Conditions type= tool_result: corresponds to the id of the corresponding tool_use and the postback content (which may contain blocks such as text, image, search_result, document, and tool_reference)
signature / thinking string / string Conditions type= thinking: The signature and thinking text returned in the previous round must be posted back as-is; any modification will result in a 400 invalid_request_error
data string Conditions type= redacted_thinkingencrypted content at the time, and perform postback as-is
cache_control object No Create a cache breakpoint for this content block: `{"type":"ephemeral", "ttl":"5m"
citations array No Text citation blocks (char_location / page_location / content_block_location / web_search_result_location / search_result_location)
system - - string or array of TextBlockParam No System prompt; the Messages API does not have systemrole messages, so the system prompt uses this field
stream - - boolean No Whether to return results incrementally via SSE (for details about the origin server, please refer to the streaming documentation)
stop_sequences - - array of string No Custom stop sequence; when triggered, the stop_reasonwill be stop_sequence, and the matched sequence will be returned in the stop_sequencefield
tools - - array of ToolUnion No Tool Definition (Client tools: name, description, input_schema; server-side tools such as versioned tool types like web_search / web_fetch / code_execution / text_editor / json are also supported)
name - string Yes Tool Name (1–128 characters, ^[a-zA-Z0-9_-]{1,128}$)
description - string No Tool description, please provide as detailed as possible
input_schema - object Yes Tool input parameters JSON Schema (type: "object", properties, required)
cache_control / strict / defer_loading / allowed_callers / input_examples / eager_input_streaming - Respective types No cache breakpoint, mandatory validation of input parameter schema, lazy loading, allowed callers, input parameter examples, input parameter streaming
tool_choice - - object No Tool Selection:{"type":"auto"}(decided by the model itself) /{"type":"any"}(mandatory tool) /{"type":"tool", "name":". .."}(specified tool) /{"type":"none"}(tool disabled); each branch can carry disable_parallel_tool_use (default is false, when set to true, tool calls are limited to at most / exactly once)
thinking - - object No Thinking configuration, choose one of three: {"type":"enabled","budget_tokens":N,"display":"summarized"\|"omitted"} (budget_tokens >=1024 and less than max_tokens), {"type":"disabled"}, {"type":"adaptive","display":...}; displaydefaults to summarized; when set to omitted, no reasoning content is returned, but the signature is retained to enable multi-turn continuation.
output_config - - object No Output configuration: effort (low/medium/high/xhigh/max), format (Structured Outputs {"type":"json_schema","schema":{...}})
metadata - - object No Request metadata: user_id (external user identifier, uuid/hash recommended, maximum length 512, do not include name/email/phone number)
service_tier - - string No auto (use priority capacity when available) or standard_only
container - - object or string No Container reuse identifier; the object form can include idand skills (up to 20 entries, each consisting of skill_id+ type: anthropic/ custom+ version)
cache_control - - object No Top-level cache control, which automatically sets a cache breakpoint for the last cacheable block in a request
inference_geo - - string No Region for inference processing; if left unspecified, the workspace default will be used default_inference_geo

Request Example

curl -X POST 'https://genaiapi.cloudsway.net/{endpoint}/v1/messages' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -H 'anthropic-version: 2023-06-01' \
  -d '{
    "model": "MaaS_Cl_Sonnet_4.6_20240620",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

Response Example

{
  "id": "msg_01XyZabcdEFghijklMNOpqr",
  "type": "message",
  "role": "assistant",
  "model": "MaaS_Cl_Sonnet_4.6_20240620",
  "content": [{"type": "text", "text": "Hello! I'm Claude, an AI assistant trained by Anthropic."}],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {"input_tokens": 18, "output_tokens": 32}
}

Example of Streaming Request

curl -X POST 'https://genaiapi.cloudsway.net/{endpoint}/v1/messages' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -H 'anthropic-version: 2023-06-01' \
  -d '{
    "model": "MaaS_Cl_Sonnet_4.6_20240620",
    "max_tokens": 1024,
    "stream": true,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

SDK Calling Method

from anthropic import Anthropic

client = Anthropic(
    api_key="${your_AK}",
    base_url="https://genaiapi.cloudsway.net/{endpoint}/v1",
)

message = client.messages.create(
    model="MaaS_Cl_Sonnet_4.6_20240620",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello, tell me about yourself"}],
)
print(message.content[0].text)

OpenAI Chat Completions

Origin server note: This protocol is provided by the official Anthropic OpenAI SDK compatibility layer, designed to "facilitate rapid testing and model capability comparison", and is not a long-term/production-grade solution; for full capabilities (PDF processing, citations, reasoning process, prompt cache), please use the native Messages protocol.

Request URL

POST https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions

Request Body Parameters

Parameter Name Secondary Parameters Type Required Description
model - string Yes Fixed as MaaS_Cl_Sonnet_4.6_20240620 (Original vendor model: claude-sonnet-4-6)
messages - array Yes Dialogue messages;rolesupports system (or developer, which will be promoted and concatenated as the first system prompt), user, assistant, tool, function
content string or array Yes user supports string, text, image_url (url);image_url. detail, input_audio, fileare ignored. assistant supports string, text;refusalis ignored
tool_calls array No Tool invocation for assistant;function_callis also supported.
tool_call_id string Conditions role= tool/ functionis mandatory
max_tokens - integer No Fully supported
max_completion_tokens - integer No Fully supported
stream - boolean No Fully supported
stream_options - object No Fully supported
temperature - number No The value ranges from 0 to 1 (inclusive); any value greater than 1 will be truncated to 1.
top_p - number No Fully supported
n - integer No Must be 1
stop - string or array No Non-blank stop-write sequence is valid
tools - array No tools[n]. function's name/ description/ parametersare fully supported;strictis ignored (use native Structured Outputs if strong validation is required)
functions - array No Same as tools (OpenAI has deprecated this field, and it is recommended to use tools instead)
parallel_tool_calls - boolean No Fully supported
thinking - object No Passed in via the extension field of the compatibility layer:{"type":"enabled", "budget_tokens": 2000}; the compatibility layer does not return Claude's detailed reasoning process
logprobs / top_logprobs - - No Ignored
metadata - object No Ignored
response_format - object No Ignored (use native Structured Outputs for JSON output)
prediction / presence_penalty / frequency_penalty / seed / service_tier / audio / logit_bias / store / user / modalities / reasoning_effort - - No are all ignored

Request Example

curl -X POST 'https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -d '{
    "model": "MaaS_Cl_Sonnet_4.6_20240620",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "Hello, tell me about yourself"}
    ]
  }'

Response Example

{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 1789000000,
  "model": "MaaS_Cl_Sonnet_4.6_20240620",
  "choices": [
    {
      "index": 0,
      "finish_reason": "stop",
      "message": {"role": "assistant", "content": "Hello! I'm Claude, happy to help you."}
    }
  ],
  "usage": {"prompt_tokens": 20, "completion_tokens": 18, "total_tokens": 38}
}

origin server description: compatibility layer choices[]always has a length of 1;usage. completion_tokens_details, usage. prompt_tokens_details, logprobs, service_tier, system_fingerprint, choices[]. message. refusal, choices[]. message. audioare always empty.

Example of Streaming Request

curl -X POST 'https://genaiapi.cloudsway.net/v1/ai/{endpointPath}/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer ${your_AK}' \
  -d '{
    "model": "MaaS_Cl_Sonnet_4.6_20240620",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello, tell me about yourself"}]
  }'

SDK Calling Method

from openai import OpenAI

client = OpenAI(
    api_key="${your_AK}",
    base_url="https://genaiapi.cloudsway.net/v1/ai/{endpointPath}",
)

response = client.chat.completions.create(
    model="MaaS_Cl_Sonnet_4.6_20240620",
    messages=[{"role": "user", "content": "Hello, tell me about yourself"}],
)
print(response.choices[0].message.content)