Model Comparison

Claude Opus 5 vs Devstral Small 1.1Which is better in 2026?

Comparing Claude Opus 5 and Devstral Small 1.1 across benchmarks, pricing, and capabilities.

Verdict: Claude Opus 5 vs Devstral Small 1.1 — which is better?

Claude Opus 5 (by Anthropic) and Devstral Small 1.1 (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, Devstral Small 1.1 is roughly 66.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Opus 5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Opus 5 if…

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

Choose Devstral Small 1.1 if…

  • cost matters — it's about 66.7x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude Opus 5 and Devstral Small 1.1don'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

Devstral Small 1.1 costs less

For input processing, Claude Opus 5 ($5.00/1M tokens) is 50.0x more expensive than Devstral Small 1.1 ($0.10/1M tokens).

For output processing, Claude Opus 5 ($25.00/1M tokens) is 83.3x more expensive than Devstral Small 1.1 ($0.30/1M tokens).

In conclusion, Claude Opus 5 is more expensive than Devstral Small 1.1.*

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

Lowest available price from all providers
Sun Jul 26 2026 • llm-stats.com
Anthropic
Claude Opus 5
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
Mistral AI
Devstral Small 1.1
Input tokens$0.10
Output tokens$0.30
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 5 accepts 1,000,000 input tokens compared to Devstral Small 1.1's 128,000 tokens. Both models can generate responses up to 128,000 tokens.

Anthropic
Claude Opus 5
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Devstral Small 1.1
Input128,000 tokens
Output128,000 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 5 supports multimodal inputs, whereas Devstral Small 1.1 does not.

Claude Opus 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5

Text
Images
Audio
Video

Devstral Small 1.1

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5 is licensed under a proprietary license, while Devstral Small 1.1 uses Apache 2.0.

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

Claude Opus 5

Proprietary

Closed source

Devstral Small 1.1

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Opus 5 was released on 2026-07-24, while Devstral Small 1.1 was released on 2025-07-11.

Claude Opus 5 is 13 months newer than Devstral Small 1.1.

Claude Opus 5

Jul 24, 2026

1 days ago

1.0yr newer
Devstral Small 1.1

Jul 11, 2025

1.0 years 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

Claude Opus 5 is available from Anthropic. Devstral Small 1.1 is available from Mistral AI.

Claude Opus 5

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

Devstral Small 1.1

mistral logo
Mistral
Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Mistral AI
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Opus 5 and Devstral Small 1.1 side-by-side, then vote on the output you prefer.

Claude Opus 5
✓ Preferred
Devstral Small 1.1
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Opus 5
Mistral AI
Devstral Small 1.1

FAQ

Common questions about Claude Opus 5 vs Devstral Small 1.1.

Which is better, Claude Opus 5 or Devstral Small 1.1?

Claude Opus 5 (Anthropic) and Devstral Small 1.1 (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 Claude Opus 5 compare to Devstral Small 1.1 in benchmarks?

Claude Opus 5 scores BrowseComp: 90.8%, BioMysteryBench: 90.1%, OSWorld 2.0: 70.6%, DeepSWE 1.1: 68.8%, Humanity's Last Exam: 64.7%. Devstral Small 1.1 scores SWE-Bench Verified: 53.6%.

Is Claude Opus 5 cheaper than Devstral Small 1.1?

Devstral Small 1.1 is 50.0x cheaper for input tokens. Claude Opus 5 costs $5.00/M input and $25.00/M output via anthropic. Devstral Small 1.1 costs $0.10/M input and $0.30/M output via mistral.

What are the context window sizes for Claude Opus 5 and Devstral Small 1.1?

Claude Opus 5 supports 1.0M tokens and Devstral Small 1.1 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 Claude Opus 5 and Devstral Small 1.1?

Key differences include context window (1.0M vs 128K), input pricing ($5.00 vs $0.10/M), multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5 and Devstral Small 1.1?

Claude Opus 5 is developed by Anthropic and Devstral Small 1.1 is developed by Mistral AI.

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