Model Comparison

Devstral Small 1.1 vs Grok-1.5Which is better in 2026?

Comparing Devstral Small 1.1 and Grok-1.5 across benchmarks, pricing, and capabilities.

Verdict: Devstral Small 1.1 vs Grok-1.5 — which is better?

Devstral Small 1.1 (by Mistral AI) and Grok-1.5 (by xAI) 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.

Choose Devstral Small 1.1 if…

  • you want the most recent training data — it shipped Jul 2025
  • you need open weights you can self-host or fine-tune

Choose Grok-1.5 if…

  • you are already invested in the xAI ecosystem
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Devstral Small 1.1 and Grok-1.5don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Devstral Small 1.1 specifies input context (128,000 tokens). Only Devstral Small 1.1 specifies output context (128,000 tokens).

Mistral AI
Devstral Small 1.1
Input128,000 tokens
Output128,000 tokens
xAI
Grok-1.5
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

License

Usage and distribution terms

Devstral Small 1.1 is licensed under Apache 2.0, while Grok-1.5 uses a proprietary license.

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

Devstral Small 1.1

Apache 2.0

Open weights

Grok-1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Devstral Small 1.1 was released on 2025-07-11, while Grok-1.5 was released on 2024-03-28.

Devstral Small 1.1 is 16 months newer than Grok-1.5.

Devstral Small 1.1

Jul 11, 2025

11 months ago

1.3yr newer
Grok-1.5

Mar 28, 2024

2.2 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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Mistral AI
Larger context window (128,000 tokens)
Has open weights
xAI

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
Mistral AI
Devstral Small 1.1
xAI
Grok-1.5

FAQ

Common questions about Devstral Small 1.1 vs Grok-1.5.

Which is better, Devstral Small 1.1 or Grok-1.5?

Devstral Small 1.1 (Mistral AI) and Grok-1.5 (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Devstral Small 1.1 compare to Grok-1.5 in benchmarks?

Devstral Small 1.1 scores SWE-Bench Verified: 53.6%. Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%.

What are the context window sizes for Devstral Small 1.1 and Grok-1.5?

Devstral Small 1.1 supports 128K tokens and Grok-1.5 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Devstral Small 1.1 and Grok-1.5?

Key differences include licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Devstral Small 1.1 and Grok-1.5?

Devstral Small 1.1 is developed by Mistral AI and Grok-1.5 is developed by xAI.

Related comparisons