Codestral 2 vs GPT-5 mini
A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.
Updated
Codestral 2 specs · GPT-5 mini specs- PriceCodestral 2
Codestral 2 is roughly 2.2× cheaper on output tokens ($0.90 vs $2.00 per 1M).
- Context windowGPT-5 mini
GPT-5 mini accepts 400K tokens vs 256K, 1.6× the room for long documents and codebases.
- BenchmarksTie
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.
- ModalitiesGPT-5 mini
GPT-5 mini supports 3 modalities (text, vision, audio) vs 1 for Codestral 2.
- OpennessCodestral 2
Codestral 2 ships open weights (Mistral Non-Production License); GPT-5 mini is API-only.
It's a genuine coin-flip between Codestral 2 and GPT-5 mini: 2 category wins each, with the rest tied. Codestral 2 is roughly 2.2× cheaper on output tokens ($0.90 vs $2.00 per 1M). GPT-5 mini accepts 400K tokens vs 256K, 1.6× the room for long documents and codebases.
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. They differ in modality coverage, Codestral 2 handles text while GPT-5 mini handles text, vision, audio, which can be the deciding factor before you even look at benchmarks. Codestral 2 ships open weights (Mistral Non-Production License); GPT-5 mini is API-only.
GPT-5 mini is the newer of the two, released 7 months after Codestral 2, which usually means a more recent knowledge cutoff and updated safety post-training. Codestral 2 is usually picked for code completion and coding llm workloads, while GPT-5 mini sees more deployments in code completion and customer support. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.
Side-by-side specs
| Spec | Codestral 2 | GPT-5 mini |
|---|---|---|
| Provider | Mistral | OpenAI |
| Released | Jan 2025 | Aug 2025 |
| Modalities | text | text, vision, audio |
| Context window | 256K tokens | 400K tokens |
| Max output | , | 128K tokens |
| Input · 1M | $0.30 / 1M tokens | $0.25 / 1M tokens |
| Output · 1M | $0.90 / 1M tokens | $2.00 / 1M tokens |
| Knowledge cutoff | , | 2024-09 |
| Open weights | Yes (Mistral Non-Production License) | No |
| API available | Yes | Yes |
Pricing at scale
What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.
- Light usage, 100k in / 50k out per day$2.25 vs $3.75
- Heavy usage, 1M in / 500k out per day$22.50 vs $37.50
- RAG workload, 5M in / 200k out per day$50.40 vs $49.50
Light usage, 100k in / 50k out per day: $2.25 vs $3.75 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $22.50 vs $37.50 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $50.40 vs $49.50 per month, model B comes out ahead.
Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.
- Codestral 2$0.075
- GPT-5 mini$0.125
Benchmarks compared
Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.
- HumanEval92.0
Codestral 2 fits when…
- Fast inline completion
- FIM support
- Self-hostable for IP-sensitive teams
- Cost-sensitive workloads, 2.2× cheaper than GPT-5 mini on output tokens.
- Self-hosting and on-prem requirements, open weights (Mistral Non-Production License).
GPT-5 mini fits when…
- Excellent price-quality ratio for production workloads
- Fast first-token latency
- Same tool-use API surface as flagship
- Long-context tasks, handles 400K tokens vs 256K for Codestral 2.
- Multimodal needs covering vision, audio.
Consider Mistral Large 2
Mistral's flagship API model, strong on code and reasoning, EU-friendly hosting.
Frequently asked
Is Codestral 2 or GPT-5 mini cheaper?
Codestral 2 is cheaper at $0.90 / 1M tokens per million output tokens, vs $2.00 / 1M tokens for GPT-5 mini.Which has the larger context window?
GPT-5 mini accepts 400K tokens vs 256K for Codestral 2.Is Codestral 2 or GPT-5 mini better for coding?
Both Codestral 2 and GPT-5 mini are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.Are either of these models open source?
Codestral 2 ships open weights (Mistral Non-Production License). GPT-5 mini is API-only.When were Codestral 2 and GPT-5 mini released?
Codestral 2 was released by Mistral on 2025-01-14. GPT-5 mini was released by OpenAI on 2025-08-07.
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