Model Comparison

Claude Opus 4.6 vs Mistral Medium 3.5

Claude Opus 4.6 significantly outperforms across most benchmarks. Mistral Medium 3.5 is 3.3x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Opus 4.6 outperforms in 3 benchmarks (AIME 2025, BrowseComp, SWE-Bench Verified), while Mistral Medium 3.5 is better at 0 benchmarks.

Claude Opus 4.6 significantly outperforms across most benchmarks.

Wed May 20 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Mistral Medium 3.5 costs less

For input processing, Claude Opus 4.6 ($5.00/1M tokens) is 3.3x more expensive than Mistral Medium 3.5 ($1.50/1M tokens).

For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 3.3x more expensive than Mistral Medium 3.5 ($7.50/1M tokens).

In conclusion, Claude Opus 4.6 is more expensive than Mistral Medium 3.5.*

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

Lowest available price from all providers

Wed May 20 2026 • llm-stats.com

Claude Opus 4.6

Input tokens$5.00

Output tokens$25.00

Best providerAnthropic

Mistral Medium 3.5

Input tokens$1.50

Output tokens$7.50

Best providerMistral

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Context Window

Maximum input and output token capacity

Claude Opus 4.6 accepts 1,000,000 input tokens compared to Mistral Medium 3.5's 256,000 tokens. Mistral Medium 3.5 can generate longer responses up to 256,000 tokens, while Claude Opus 4.6 is limited to 128,000 tokens.

Claude Opus 4.6

Input1,000,000 tokens

Output128,000 tokens

Mistral Medium 3.5

Input256,000 tokens

Output256,000 tokens

Wed May 20 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.6 and Mistral Medium 3.5 support multimodal inputs.

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

Claude Opus 4.6

Text

Images

Audio

Video

Mistral Medium 3.5

Text

Images

Audio

Video

License

Usage and distribution terms

Claude Opus 4.6 is licensed under a proprietary license, while Mistral Medium 3.5 uses Modified MIT License.

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

Claude Opus 4.6

Proprietary

Closed source

Mistral Medium 3.5

Modified MIT License

Open weights

Release Timeline

When each model was launched

Claude Opus 4.6 was released on 2026-02-05, while Mistral Medium 3.5 was released on 2026-04-29.

Mistral Medium 3.5 is 3 months newer than Claude Opus 4.6.

Claude Opus 4.6

Feb 5, 2026

3 months ago

Mistral Medium 3.5

Apr 29, 2026

3 weeks ago

2mo newer

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

Claude Opus 4.6 is available from Anthropic. Mistral Medium 3.5 is available from Mistral AI.

Claude Opus 4.6

Anthropic

Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

Mistral Medium 3.5

Mistral

Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M

* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Claude Opus 4.6

View details

Anthropic

Larger context window (1,000,000 tokens)

Higher AIME 2025 score (99.8% vs 86.3%)

Higher BrowseComp score (84.0% vs 48.6%)

Higher SWE-Bench Verified score (80.8% vs 77.6%)

Mistral Medium 3.5

View details

Mistral AI

Less expensive input tokens

Less expensive output tokens

Has open weights

Detailed Comparison

AI Model Comparison Table
Feature	Claude Opus 4.6	Mistral Medium 3.5

FAQ

Common questions about Claude Opus 4.6 vs Mistral Medium 3.5.

Which is better, Claude Opus 4.6 or Mistral Medium 3.5?

Claude Opus 4.6 significantly outperforms across most benchmarks. Claude Opus 4.6 is made by Anthropic and Mistral Medium 3.5 is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Opus 4.6 compare to Mistral Medium 3.5 in benchmarks?

Claude Opus 4.6 scores Vending-Bench 2: 100.0%, AIME 2025: 99.8%, Tau2 Telecom: 99.3%, Graphwalks parents >128k: 95.4%, MRCR v2 (8-needle): 93.0%. Mistral Medium 3.5 scores COLLIE: 95.8%, Tau3 Telecom: 91.4%, AIME 2025: 86.3%, SWE-Bench Verified: 77.6%, Tau3 Retail: 76.1%.

Is Claude Opus 4.6 cheaper than Mistral Medium 3.5?

Mistral Medium 3.5 is 3.3x cheaper for input tokens. Claude Opus 4.6 costs $5.00/M input and $25.00/M output via anthropic. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output via mistral.

What are the context window sizes for Claude Opus 4.6 and Mistral Medium 3.5?

Claude Opus 4.6 supports 1.0M tokens and Mistral Medium 3.5 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 4.6 and Mistral Medium 3.5?

Key differences include context window (1.0M vs 256K), input pricing ($5.00 vs $1.50/M), licensing (Proprietary vs Modified MIT License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.6 and Mistral Medium 3.5?

Claude Opus 4.6 is developed by Anthropic and Mistral Medium 3.5 is developed by Mistral AI.