Standard Compute
Model comparison 2026

Devstral 2 vs GPT-6 Sol

Devstral 2
Mistral · Balanced · Open weights
$0.88/1M · 262K ctx
GPT-6 Sol
OpenAI · Balanced · Proprietary
$4.40/1M · 1.1M ctx

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for money
How much capability you get per dollar
Reliability
Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec
Devstral 2
GPT-6 Sol
Maker
Mistral
OpenAI
Blended price / 1M
$0.88
$4.40
Input / output
$0.40 in · $2.00 out / 1M tokens
$2.00 in · $10 out / 1M tokens
Context window
262K
1.1M
Open weights
Yes
No
Tool use
Yes
Yes
Reasoning
No
Yes
Output Quality
7.8
9.4
Agentic Ability
8.6
9.4
Speed
8.2
8.2
Value for money
8.8
8.6
Reliability
8.7
9.2

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: Devstral 2 or GPT-6 Sol?

Updated 2026-10-13

Choose Devstral 2 if you want dedicated open-weight coding agents. Choose GPT-6 Sol if you want existing GPT-6 Sol setups and calls that need no-reasoning mode.

In our editorial scoring, GPT-6 Sol leads in 3 of five dimensions (output quality, agentic ability and reliability), while Devstral 2 leads in 1. On price, Devstral 2 runs about $0.88 per 1M tokens (blended) and is open-weight; GPT-6 Sol is about $4.40 and proprietary.

Where Devstral 2 falls short
  • Narrower than a general model
  • Behind frontier on hard reasoning
Full Devstral 2 breakdown →
Where GPT-6 Sol falls short
  • Superseded by GPT-6.1 Sol, which scores higher at the same price
  • Cached input costs $0.20 per million, twice GPT-6.1 Sol
Full GPT-6 Sol breakdown →

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