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Devstral Small

Mistral coding agent model for repository tasks and software engineering workflows

Source-linked devstral Open weights Released 2025-07-10
API data Report
Input modalitiesT
Output modalitiesT
Input price$0.1/1M tokens
Output price$0.3/1M tokens
Context window128K
Max output128K
Overview

Capabilities and specifications

× Reasoning No
✓ Tool calling Yes
? Structured output Unknown
× Attachments No
× Vision input No
✓ Open weights Yes
Creator
Mistral AI
Model family
devstral
Knowledge cutoff
2025-05
License
Not documented
Release date
2025-07-10
Model ID
mistral/devstral-small-2507
Inference availability

Provider pricing and availability

Provider-specific identifiers, limits, and prices per million tokens.

Report a price
Providers offering Devstral Small
ProviderProvider model IDContextInputOutputCache readCapabilitiesSource
Mistral devstral-small-2507 128K $0.1 $0.3 - Tools Docs
Merge Gateway mistral/devstral-small-2507 128K $0.1 $0.3 - Tools Docs
LLM Gateway devstral-small-2507 131.072K $0.1 $0.3 - Tools Docs

Capability badges appear only when the provider catalog explicitly lists support.

Serving quality

Performance and reliability

Observed serving measurements stay separate from model specifications and are never estimated from price or model size.

Throughput Not reported

Generation speed; higher is faster.

Latency / TTFT Not reported

Time until the first output token arrives.

Uptime Not reported

Successful requests over a measured period.

Performance varies by inference provider, region, and load. Provider-level measurements appear only when a source reports them.

Published evaluations

Benchmarks

Raw results remain attached to their original source and version.

Benchmark registry
SWE-Bench Verified - Unversioned - resolvedTop 8 reported models
Claude Fable 5
95.0
Claude Opus 4.8
88.6
Claude Sonnet 5
85.2
DeepSeek V4 Pro
80.6
Qwen3.7 Max
80.4
Kimi K2.6
80.2
DeepSeek V4 Flash
79.0
Devstral Small
53.6
Catalog activity

Recent record changes

Detected changes from successful source imports.

Full change log
No recent changes detected

This record has not changed in the retained import history.

Public API

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Fetch the complete source-linked model record without an API key.

API documentation
Endpoint
GET https://www.modelbench.lol/api/v1/models/mistral/devstral-small-2507
curl
curl "https://www.modelbench.lol/api/v1/models/mistral/devstral-small-2507"