Mistral Medium 3.5 (128B) Free API on Mistral AI

Free API

Available from Mistral AI

Catalog profile API ready provider catalog metadata

Mistral Medium 3.5 (128B) — free model from Mistral AI.

Free APIOpenAI compatibleText

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API Details

Copy-ready connection details

Use these values in your client or SDK.

Base URL

https://api.mistral.ai/v1

Model ID

mistral-medium-3-5-128b

API format OpenAI Chat Completions

Technical Details

Mistral Medium 3.5 (128B) specifications

Provider catalog

Context window 256K

Max output 256K

Status Online

Last updated Jun 17, 2026

Free listing since Jun 17, 2026

Input text

Output text

AI Recommendation

Should you use Mistral Medium 3.5 (128B)?

Mistral Medium 3.5 (128B) is listed for chat workloads and supports a 256K context window.

Use it when Mistral AI's free tier is enough for evaluation, demos, or light production traffic.

Best for

Chat

Strengths & Weaknesses

Strengths

Long context window
Works with OpenAI-style SDKs

Watch outs

Free-tier rate limits apply
Vision support is not listed
Tool calling is not confirmed

Availability

Mistral Medium 3.5 (128B) availability by provider

Current provider only

We only found this Mistral Medium 3.5 (128B) listing on Mistral AI in the current catalog. Use the related models section for nearby alternatives.

Provider	Model listing	Access	Context	API	Limits
Mistral AI	Mistral Medium 3.5 (128B)	Free tier	256K	OpenAI-style	~1 RPS, 500K TPM

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Compare

Mistral Medium 3.5 (128B) alternatives to consider

Open comparison

Model	Provider	Context	Access
Mistral 7B	Mistral AI	33K	Free tier
Mixtral 8x7B	Mistral AI	33K	Free tier
Mistral Small 4	Mistral AI	256K	Free tier
Mistral Large 3	Mistral AI	256K	Free tier
Ministral 8B	Mistral AI	256K	Free tier

Typical Use Cases

Mistral Medium 3.5 (128B) use cases

Chat

Mistral Medium 3.5 (128B) is tagged for chat in this catalog and works with OpenAI-compatible client libraries.

FAQ

Mistral Medium 3.5 (128B) free API FAQ

Is Mistral Medium 3.5 (128B) free to use?

Mistral Medium 3.5 (128B) is listed with free API access on Mistral AI, subject to the provider's quota and account policy.

What is the Mistral Medium 3.5 (128B) model ID?

The model ID shown in this catalog is mistral-medium-3-5-128b.

What are the Mistral Medium 3.5 (128B) free tier rate limits on Mistral AI?

The listed free tier limit is ~1 RPS, 500K TPM. Limits can change per account tier, so confirm against the provider dashboard.

What context window does Mistral Medium 3.5 (128B) support?

The listed context window is 256K tokens with up to 256K output tokens.

More about Mistral Medium 3.5 (128B)