Claude Opus 4.1 vs Devstral Small 1.1
Claude Opus 4.1 significantly outperforms across most benchmarks. Devstral Small 1.1 is 200.0x cheaper per token.
Anthropic · Mistral AI · Updated for 2026
Which is better?
Claude Opus 4.1 outperforms in 1 benchmarks (SWE-Bench Verified), while Devstral Small 1.1 is better at 0 benchmarks. Claude Opus 4.1 significantly outperforms across most benchmarks.
On price, Devstral Small 1.1 is roughly 200.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Claude Opus 4.1 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Claude Opus 4.1
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you process long inputs — it offers a 200,000 token context window
- you want the most recent training data — it shipped Aug 2025
Choose Devstral Small 1.1
- cost matters — it's about 200.0x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Claude Opus 4.1 outperforms in 1 benchmarks (SWE-Bench Verified), while Devstral Small 1.1 is better at 0 benchmarks.
Claude Opus 4.1 significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Opus 4.1 ($15.00/1M tokens) is 150.0x more expensive than Devstral Small 1.1 ($0.10/1M tokens).
For output processing, Claude Opus 4.1 ($75.00/1M tokens) is 250.0x more expensive than Devstral Small 1.1 ($0.30/1M tokens).
In conclusion, Claude Opus 4.1 is more expensive than Devstral Small 1.1.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude Opus 4.1 accepts 200,000 input tokens compared to Devstral Small 1.1's 128,000 tokens. Devstral Small 1.1 can generate longer responses up to 128,000 tokens, while Claude Opus 4.1 is limited to 32,000 tokens.
Input Capabilities
Supported data types and modalities
Claude Opus 4.1 supports multimodal inputs, whereas Devstral Small 1.1 does not.
Claude Opus 4.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude Opus 4.1
Devstral Small 1.1
License
Usage and distribution terms
Claude Opus 4.1 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.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Claude Opus 4.1 was released on 2025-08-05, while Devstral Small 1.1 was released on 2025-07-11.
Claude Opus 4.1 is 1 month newer than Devstral Small 1.1.
Aug 5, 2025
1.1 years ago
3w newerJul 11, 2025
1.1 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Claude Opus 4.1 is available from Anthropic, Bedrock, Google. Devstral Small 1.1 is available from Mistral AI.
Claude Opus 4.1
Devstral Small 1.1
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Opus 4.1 and Devstral Small 1.1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Opus 4.1 vs Devstral Small 1.1.