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Devstral Small
mistral·mistral/devstral-small-2507·Deprecated·Open weights·devstral series
Mistral coding agent model for repository tasks and software engineering workflows
At a glance
Official price$0.10 / $0.30 per 1M
Cache read — · Mistral
Lowest paid$0.10 / $0.30
Merge Gateway Gateway · 1× spread
Context128,000
Output limit128,000
Capabilities
Reasoning✓ Tool use? Structured output✓ TemperatureAttachments
Modalities
Text
Knowledge cutoff2025-05
Released / updated2025-07-10 / 2025-07-10
Quality & performanceArtificial Analysis · Intelligence Index v4.1
Intelligence11.8
Value79
Coding—
Agentic—
Output speed—
TTFT—
Value formulaIQ 11.8 ÷ min blended $0.150 = 79
Reasoning tier → intelligence / speed (higher tier = stronger but slower)
defaultIQ 9.1
defaultIQ 11.8
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
Available at 2 providers2 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Merge Gateway | Gateway | $0.10 | $0.30 | — | — | 128,000 | 128,000 | deprecated |
| MistralOfficial | First-party | $0.10 | $0.30 | — | — | 128,000 | 128,000 | deprecated |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Merge Gateway$35.00
2Mistral · Official$35.00
Switch to Merge Gateway to save $0.00/mo (0%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.
Benchmark1 items
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| SWE-Bench Verified | — | 53.6 | resolved | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.
Related models
devstral-latestsame series$0.396 / $1.98devstral-latest@eusame series$0.396 / $1.98Devstral 2 123Bsame series$0.40 / $2.00Llama 4 Maverick 17B 128E Instruct FP8cheaper alternative$0 / $0Lyria 3 Clip Previewcheaper alternative$0 / $0Command R7Bcheaper alternative$0.037 / $0.15Granite 4.1 8Bcheaper alternative$0.05 / $0.10
Price historyone sample accumulated per data sync
Input listOutput listMin blended