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feat(mistral-ai/mistral-medium-3-5-0): add new models [bot]#1330

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feat(mistral-ai/mistral-medium-3-5-0): add new models [bot]#1330
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Auto-generated by model-addition-agent for mistral-ai/mistral-medium-3-5-0.


Note

Low Risk
Adds a standalone YAML model definition only; no runtime, auth, or routing logic changes.

Overview
Adds a new Mistral AI provider definition for mistral-medium-3-5-0, registering it as an active chat model with token pricing, a 262k context window, and capabilities for function calling, structured output, system messages, and tool choice.

Input modalities include text, image, and doc (alongside text output). Default temperature is set to 1.0. The entry references Mistral’s official model card documentation.

Reviewed by Cursor Bugbot for commit 91d6225. Bugbot is set up for automated code reviews on this repo. Configure here.

Comment thread providers/mistral-ai/mistral-medium-3-5-0.yaml
Comment thread providers/mistral-ai/mistral-medium-3-5-0.yaml
Comment thread providers/mistral-ai/mistral-medium-3-5-0.yaml
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@harshiv-26

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Gateway test results

  • Total: 6
  • Passed: 0
  • Failed: 6
  • Validation failed: 0
  • Errored: 0
  • Skipped: 0
  • Success rate: 0.0%
Provider Model Scenarios
mistral-ai mistral-medium-3-5-0 failure: tool-call, tool-call:stream, structured-output:stream, params, params:stream, structured-output
Failures (6)

mistral-ai/mistral-medium-3-5-0 — tool-call (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmpsofka06m/snippet.py", line 27, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

tools = [
    {
        "type": "function",
        "function": {
            "name": "get_weather",
            "description": "Get the current weather for a location.",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "The city name, e.g. London",
                    },
                },
                "required": ["location"],
                "additionalProperties": False,
            },
            "strict": True,
        },
    },
]

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "You are a helpful assistant with access to tools. You MUST strictly use the provided tools to answer. Never respond with plain text when a tool is available."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "Use the get_weather tool to check the weather in London. You must call the tool, do not respond with plain text."},
    ],
    tools=tools,
    tool_choice="auto",
    stream=False,
)
_message = response.choices[0].message
if _message.tool_calls:
    for _tc in _message.tool_calls:
        print(f"Function: {_tc.function.name}")
        print(f"Arguments: {_tc.function.arguments}")
else:
    print(_message.content)

if not _message.tool_calls or len(_message.tool_calls) == 0:
    raise Exception("VALIDATION FAILED: tool-call - no tool calls in response")
print("VALIDATION: tool-call SUCCESS")

mistral-ai/mistral-medium-3-5-0 — tool-call:stream (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmpivpz_utd/snippet.py", line 27, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

tools = [
    {
        "type": "function",
        "function": {
            "name": "get_weather",
            "description": "Get the current weather for a location.",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "The city name, e.g. London",
                    },
                },
                "required": ["location"],
                "additionalProperties": False,
            },
            "strict": True,
        },
    },
]

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "You are a helpful assistant with access to tools. You MUST strictly use the provided tools to answer. Never respond with plain text when a tool is available."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "Use the get_weather tool to check the weather in London. You must call the tool, do not respond with plain text."},
    ],
    tools=tools,
    tool_choice="auto",
    stream=True,
)
_tool_calls_made = False
for chunk in response:
    if chunk.choices and len(chunk.choices) > 0:
        delta = chunk.choices[0].delta
        if delta.content is not None:
            print(delta.content, end="", flush=True)
        if delta.tool_calls:
            _tool_calls_made = True
            for _tc in delta.tool_calls:
                if _tc.function:
                    print(_tc.function.arguments or "", end="", flush=True)

if not _tool_calls_made:
    raise Exception("VALIDATION FAILED: tool-call stream - no tool calls received")
print("\nVALIDATION: tool-call stream SUCCESS")

mistral-ai/mistral-medium-3-5-0 — structured-output:stream (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmpggos1_ri/snippet.py", line 21, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI
import json

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

response_schema = json.loads('''{
  "title": "CalendarEvent",
  "type": "object",
  "properties": {
    "name": { "type": "string" },
    "date": { "type": "string" },
    "participants": {
      "type": "array",
      "items": { "type": "string" }
    }
  },
  "required": ["name", "date", "participants"],
  "additionalProperties": false
}''')

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "Extract the event information as JSON."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "Alice and Bob are going to a science fair on Friday. Extract the event details as JSON."},
    ],
    response_format={"type": "json_schema", "json_schema": {"name": "CalendarEvent", "schema": response_schema}},
    stream=True,
)
import json as _json

_accumulated = ""
for chunk in response:
    if chunk.choices and len(chunk.choices) > 0:
        delta = chunk.choices[0].delta
        if delta.content is not None:
            _accumulated += delta.content
            print(delta.content, end="", flush=True)

if not _accumulated:
    raise Exception("VALIDATION FAILED: structured-output stream - no content received")

_parsed = _json.loads(_accumulated)

if "name" not in _parsed or "date" not in _parsed or "participants" not in _parsed:
    raise Exception("VALIDATION FAILED: structured-output stream - missing expected fields (name, date, participants)")

if not isinstance(_parsed.get("participants"), list):
    raise Exception("VALIDATION FAILED: structured-output stream - 'participants' is not a list, schema not enforced")

if set(_parsed.keys()) != {"name", "date", "participants"}:
    raise Exception(
        f"VALIDATION FAILED: structured-output stream - unexpected keys present: {set(_parsed.keys())}"
    )

print("\nVALIDATION: structured-output stream SUCCESS")

mistral-ai/mistral-medium-3-5-0 — params (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmposgpodmm/snippet.py", line 5, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "What is the capital of France?"},
    ],
    max_tokens=256,
    temperature=1,
    stream=False,
)

print(response.choices[0].message.content)

mistral-ai/mistral-medium-3-5-0 — params:stream (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmpql3i2h8n/snippet.py", line 5, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "What is the capital of France?"},
    ],
    max_tokens=256,
    temperature=1,
    stream=True,
)

for chunk in response:
    if chunk.choices and len(chunk.choices) > 0:
        delta = chunk.choices[0].delta
        if delta.content is not None:
            print(delta.content, end="", flush=True)

mistral-ai/mistral-medium-3-5-0 — structured-output (failure)

Error
Traceback (most recent call last):
  File "/tmp/tmpjq1bki8y/snippet.py", line 21, in <module>
    response = client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_utils/_utils.py", line 286, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/resources/chat/completions/completions.py", line 1147, in create
    return self._post(
           ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1259, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openai/_base_client.py", line 1047, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'status': 'failure', 'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'error': {'message': 'mistral-ai error: Invalid model: mistral-medium-3-5-0', 'type': 'APIError', 'code': '400'}, 'error_origin_level': 'api_error', 'provider': 'mistral-ai'}
Code snippet
from openai import OpenAI
import json

client = OpenAI(api_key="***", base_url="https://internal.devtest.truefoundry.tech/api/llm")

response_schema = json.loads('''{
  "title": "CalendarEvent",
  "type": "object",
  "properties": {
    "name": { "type": "string" },
    "date": { "type": "string" },
    "participants": {
      "type": "array",
      "items": { "type": "string" }
    }
  },
  "required": ["name", "date", "participants"],
  "additionalProperties": false
}''')

response = client.chat.completions.create(
    model="test-v2-mistral-ai/mistral-medium-3-5-0",
    messages=[
        {"role": "system", "content": "Extract the event information as JSON."},
        {"role": "user", "content": "Hi"},
        {"role": "assistant", "content": "Hi, how can I help you"},
        {"role": "user", "content": "Alice and Bob are going to a science fair on Friday. Extract the event details as JSON."},
    ],
    response_format={"type": "json_schema", "json_schema": {"name": "CalendarEvent", "schema": response_schema}},
    stream=False,
)
import json as _json

_content = response.choices[0].message.content
print(_content)

if not _content:
    raise Exception("VALIDATION FAILED: structured-output - response content is empty")

_parsed = _json.loads(_content)

if "name" not in _parsed or "date" not in _parsed or "participants" not in _parsed:
    raise Exception("VALIDATION FAILED: structured-output - missing expected fields (name, date, participants)")

if not isinstance(_parsed.get("participants"), list):
    raise Exception("VALIDATION FAILED: structured-output - 'participants' is not a list, schema not enforced")

if set(_parsed.keys()) != {"name", "date", "participants"}:
    raise Exception(
        f"VALIDATION FAILED: structured-output - unexpected keys present: {set(_parsed.keys())}"
    )

print("VALIDATION: structured-output SUCCESS")

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Cursor Bugbot has reviewed your changes and found 2 potential issues.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit 91d6225. Configure here.

output:
- text
mode: chat
model: mistral-medium-3-5-0

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Unknown Mistral API model id

High Severity

The model value is set to mistral-medium-3-5-0, but Mistral’s public model listings and docs for the linked Medium 3.5 v26.04 card use ids such as mistral-medium-3-5 and mistral-medium-3.5, which are already registered here. Callers that send this slug to the Mistral API are likely to get model-not-found errors.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 91d6225. Configure here.

model: mistral-medium-3-5-0
params:
- defaultValue: 1.0
key: temperature

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Temperature default set too high

Medium Severity

This entry overrides temperature with defaultValue: 1.0, while the Mistral provider default.yaml and other Medium 3.5 configs for the same model card use 0.7. Consumers that apply per-model param defaults may get noticeably more random outputs than intended for this model family.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 91d6225. Configure here.

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