Model Comparison

GPT-5.4 vs Mistral Large 3Which is better in 2026?

Comparing GPT-5.4 and Mistral Large 3 across benchmarks, pricing, and capabilities.

Verdict: GPT-5.4 vs Mistral Large 3 — which is better?

GPT-5.4 (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 2.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5.4 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-5.4 if…

  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Mar 2026

Choose Mistral Large 3 if…

  • cost matters — it's about 2.0x cheaper per token
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5.4 and Mistral Large 3 don'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-5.4 ($2.50/1M tokens) is 1.3x more expensive than Mistral Large 3 ($2.00/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 3.0x more expensive than Mistral Large 3 ($5.00/1M tokens).

In conclusion, GPT-5.4 is more expensive than Mistral Large 3.*

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

Lowest available price from all providers
Sun Jun 07 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
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-5.4 accepts 1,000,000 input tokens compared to Mistral Large 3's 128,000 tokens. GPT-5.4 can generate longer responses up to 128,000 tokens, while Mistral Large 3 is limited to 8,192 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Mistral Large 3
Input128,000 tokens
Output8,192 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and Mistral Large 3 support multimodal inputs.

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

GPT-5.4

Text
Images
Audio
Video

Mistral Large 3

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.4 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-5.4

Proprietary

Closed source

Mistral Large 3

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Mistral Large 3 was released on 2025-09-01.

GPT-5.4 is 6 months newer than Mistral Large 3.

GPT-5.4

Mar 5, 2026

3 months ago

6mo newer
Mistral Large 3

Sep 1, 2025

9 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GPT-5.4 is available from OpenAI. Mistral Large 3 is available from Mistral AI.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

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 (1,000,000 tokens)
Mistral AI
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
Mistral AI
Mistral Large 3

FAQ

Common questions about GPT-5.4 vs Mistral Large 3.

Which is better, GPT-5.4 or Mistral Large 3?

GPT-5.4 (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-5.4 compare to Mistral Large 3 in benchmarks?

GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. Mistral Large 3 scores MATH: 90.4%, MM-MT-Bench: 84.9%, MMLU-Redux: 82.0%, TriviaQA: 74.9%, MMMLU: 74.2%.

Is GPT-5.4 cheaper than Mistral Large 3?

Mistral Large 3 is 1.3x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/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-5.4 and Mistral Large 3?

GPT-5.4 supports 1.0M 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-5.4 and Mistral Large 3?

Key differences include context window (1.0M vs 128K), input pricing ($2.50 vs $2.00/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 and Mistral Large 3?

GPT-5.4 is developed by OpenAI and Mistral Large 3 is developed by Mistral AI.

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