Mistral AI model product
Devstral Medium
6% on SWE-Bench Verified.
Updated Sep 8, 2026. Default version: Devstral Medium
LLMBoard Score23.3Devstral Medium
Coverage0%1 benchmark families
Context window128KTokens
Official input price$0.40Mistral API
Devstral Medium Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Devstral Medium Benchmark Results
Benchmark scores for Devstral Medium.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkSWE-Bench Verified | Score61.60% | Rank82 | Participants113 | Percentile27.68% | EvidenceC | Evaluated |
| BenchmarkLM Arena Webdev | Score1,080.94 rating | Rank97 | Participants97 | Percentile0.00% | EvidenceA | Evaluated |
Devstral Medium Arena Results
Preference and agent-evaluation results for the default version.
Sort by
Arena | Category | Rank | Rating / score | Votes | Observations | Result date |
|---|
| Arenawebdev | Categorywebdev-html | Rank96 | Rating / score1,087.83 | Votes831 | ObservationsN/A | Result date |
| Arenawebdev | Categoryoverall | Rank97 | Rating / score1,080.94 | Votes831 | ObservationsN/A | Result date |
| Arenawebdev | Categorywebdev | Rank97 | Rating / score1,080.94 | Votes831 | ObservationsN/A | Result date |
Devstral Medium Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- $0.40 input, $2 output per 1M
- Official provider
- Mistral
- Lowest third-party
- From $0.40 input, $2 output per 1M via Merge Gateway
- Tracked offerings
- 2
Sort by
Provider | Provider model ID | Region | Input / 1M | Output / 1M | Context | Updated |
|---|
| ProviderMerge Gateway | Provider model IDmistral/devstral-medium-2507 | Regionglobal | Input / 1M$0.40 | Output / 1M$2 | Context128K | Updated |
| ProviderMistral | Provider model IDdevstral-medium-2507 | Regionglobal | Input / 1M$0.40 | Output / 1M$2 | Context128K | Updated |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Devstral Medium Runtime Performance
Provider-specific output speed and catalog latency for Devstral Medium. Runtime does not affect the capability score.
Sort by
Provider | Output Speed | Catalog Latency | Max Input | Max Output | Updated |
|---|
| ProviderMistral AI | Output Speed137.10 tok/s | Catalog Latency0.23 s | Max Input128K | Max Output128K | Updated |
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Devstral Medium Specifications
Technical details for the model's default version.
- Version
- Devstral Medium
- Released
- Jul 10, 2025
- Knowledge cutoff
- Unknown
- Parameters
- N/A
- Context window
- 128K
- Max output
- 128K
- Inputs
- text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Devstral Medium Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionDevstral Medium | Released | LLMBoard23.28 | ParametersN/A | Context128K | Max output128K | Open weightsNo | LicenseProprietary |
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What is Devstral Medium?
Key information about Devstral Medium and its available data.
Devstral Medium is an LLM from Mistral AI that builds upon Devstral Small. It is available through the Mistral public API.
Data as of 2026-09-08.
FAQ
Common questions about Devstral Medium.
When was Devstral Medium released?
Devstral Medium's default version was released on Jul 10, 2025.
How much does Devstral Medium cost?
Devstral Medium's official API price is $0.40 per million input tokens and $2 per million output tokens via Mistral. The lowest tracked third-party offer starts at $0.40 input and $2 output via Merge Gateway.
Who created Devstral Medium?
Devstral Medium was created by Mistral AI.
What is the context window for Devstral Medium?
The default version has a 128K token context window.
Is Devstral Medium open weight?
No. The default version is not marked as having publicly available weights.