Model Comparison

GPT-5 Medium vs Mistral Large 3Which is better in 2026?

Comparing GPT-5 Medium and Mistral Large 3 across benchmarks, pricing, and capabilities.

Verdict: GPT-5 Medium vs Mistral Large 3 — which is better?

GPT-5 Medium (by OpenAI) and Mistral Large 3 (by Mistral AI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

On price, Mistral Large 3 is roughly 1.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5 Medium also accepts a larger context window (400,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-5 Medium if…

  • you process long inputs — it offers a 400,000 token context window

Choose Mistral Large 3 if…

  • cost matters — it's about 1.3x cheaper per token
  • you want the most recent training data — it shipped Sep 2025
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5 Medium and Mistral Large 3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Mistral Large 3 costs less

For input processing, GPT-5 Medium ($1.25/1M tokens) is 1.6x cheaper than Mistral Large 3 ($2.00/1M tokens).

For output processing, GPT-5 Medium ($10.00/1M tokens) is 2.0x more expensive than Mistral Large 3 ($5.00/1M tokens).

In conclusion, GPT-5 Medium is more expensive than Mistral Large 3.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Jul 21 2026 • llm-stats.com
OpenAI
GPT-5 Medium
Input tokens$1.25
Output tokens$10.00
Best providerOpenAI
Mistral AI
Mistral Large 3
Input tokens$2.00
Output tokens$5.00
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5 Medium accepts 400,000 input tokens compared to Mistral Large 3's 128,000 tokens. GPT-5 Medium can generate longer responses up to 128,000 tokens, while Mistral Large 3 is limited to 8,192 tokens.

OpenAI
GPT-5 Medium
Input400,000 tokens
Output128,000 tokens
Mistral AI
Mistral Large 3
Input128,000 tokens
Output8,192 tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5 Medium and Mistral Large 3 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5 Medium

Text
Images
Audio
Video

Mistral Large 3

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5 Medium is licensed under a proprietary license, while Mistral Large 3 uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

GPT-5 Medium

Proprietary

Closed source

Mistral Large 3

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5 Medium was released on 2025-08-07, while Mistral Large 3 was released on 2025-09-01.

Mistral Large 3 is 1 month newer than GPT-5 Medium.

GPT-5 Medium

Aug 7, 2025

11 months ago

Mistral Large 3

Sep 1, 2025

10 months ago

3w newer

Knowledge Cutoff

When training data ends

GPT-5 Medium has a documented knowledge cutoff of 2024-09-30, while Mistral Large 3's cutoff date is not specified.

We can confirm GPT-5 Medium's training data extends to 2024-09-30, but cannot make a direct comparison without Mistral Large 3's cutoff date.

GPT-5 Medium

Sep 2024

Mistral Large 3

—

Provider Availability

GPT-5 Medium is available from OpenAI. Mistral Large 3 is available from Mistral AI.

GPT-5 Medium

openai logo
OpenAI
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M

Mistral Large 3

mistral logo
Mistral
Input Price:Input: $2.00/1MOutput Price:Output: $5.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Less expensive input tokens
Mistral AI
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-5 Medium and Mistral Large 3 side-by-side, then vote on the output you prefer.

GPT-5 Medium
✓ Preferred
Mistral Large 3
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-5 Medium
Mistral AI
Mistral Large 3

FAQ

Common questions about GPT-5 Medium vs Mistral Large 3.

Which is better, GPT-5 Medium or Mistral Large 3?

GPT-5 Medium (OpenAI) and Mistral Large 3 (Mistral AI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GPT-5 Medium compare to Mistral Large 3 in benchmarks?

GPT-5 Medium scores AIME 2025: 88.9%, GPQA: 88.1%. Mistral Large 3 scores MATH: 90.4%, MM-MT-Bench: 84.9%, MMLU-Redux: 82.0%, TriviaQA: 74.9%, MMMLU: 74.2%.

Is GPT-5 Medium cheaper than Mistral Large 3?

GPT-5 Medium is 1.6x cheaper for input tokens. GPT-5 Medium costs $1.25/M input and $10.00/M output via openai. Mistral Large 3 costs $2.00/M input and $5.00/M output via mistral.

What are the context window sizes for GPT-5 Medium and Mistral Large 3?

GPT-5 Medium supports 400K tokens and Mistral Large 3 supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5 Medium and Mistral Large 3?

Key differences include context window (400K vs 128K), input pricing ($1.25 vs $2.00/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5 Medium and Mistral Large 3?

GPT-5 Medium is developed by OpenAI and Mistral Large 3 is developed by Mistral AI.

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