Codestral 2 vs Gemini 2.5 Pro
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 · Gemini 2.5 Pro specs- PriceCodestral 2
Codestral 2 is roughly 11.1× cheaper on output tokens ($0.90 vs $10.00 per 1M).
- Context windowGemini 2.5 Pro
Gemini 2.5 Pro accepts 2.1M tokens vs 256K, 8.2× 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.
- ModalitiesGemini 2.5 Pro
Gemini 2.5 Pro supports 4 modalities (text, vision, audio, video) vs 1 for Codestral 2.
- OpennessCodestral 2
Codestral 2 ships open weights (Mistral Non-Production License); Gemini 2.5 Pro is API-only.
It's a genuine coin-flip between Codestral 2 and Gemini 2.5 Pro: 2 category wins each, with the rest tied. Codestral 2 is roughly 11.1× cheaper on output tokens ($0.90 vs $10.00 per 1M). Gemini 2.5 Pro accepts 2.1M tokens vs 256K, 8.2× 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 Gemini 2.5 Pro handles text, vision, audio, video, which can be the deciding factor before you even look at benchmarks. Codestral 2 ships open weights (Mistral Non-Production License); Gemini 2.5 Pro is API-only.
Gemini 2.5 Pro is the newer of the two, released 2 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 Gemini 2.5 Pro sees more deployments in long context and rag. 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 | Gemini 2.5 Pro |
|---|---|---|
| Provider | Mistral | |
| Released | Jan 2025 | Mar 2025 |
| Modalities | text | text, vision, audio, video |
| Context window | 256K tokens | 2.1M tokens |
| Max output | , | , |
| Input · 1M | $0.30 / 1M tokens | $1.25 / 1M tokens |
| Output · 1M | $0.90 / 1M tokens | $10.00 / 1M tokens |
| Knowledge cutoff | , | 2025-01 |
| 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 $18.75
- Heavy usage, 1M in / 500k out per day$22.50 vs $188
- RAG workload, 5M in / 200k out per day$50.40 vs $248
Light usage, 100k in / 50k out per day: $2.25 vs $18.75 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $22.50 vs $188 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $50.40 vs $248 per month, model A 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
- Gemini 2.5 Pro$0.625
Benchmarks compared
Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.
- MMLU,86.0
- HumanEval92.0
- GPQA,84.0
Codestral 2 fits when…
- Fast inline completion
- FIM support
- Self-hostable for IP-sensitive teams
- Cost-sensitive workloads, 11.1× cheaper than Gemini 2.5 Pro on output tokens.
- Self-hosting and on-prem requirements, open weights (Mistral Non-Production License).
Gemini 2.5 Pro fits when…
- 2M-token context window
- Strong on long-document tasks
- Native multimodal handling
- Long-context tasks, handles 2.1M tokens vs 256K for Codestral 2.
- Multimodal needs covering vision, audio, video.
Consider Mistral Large 2
Mistral's flagship API model, strong on code and reasoning, EU-friendly hosting.
Frequently asked
Is Codestral 2 or Gemini 2.5 Pro cheaper?
Codestral 2 is cheaper at $0.90 / 1M tokens per million output tokens, vs $10.00 / 1M tokens for Gemini 2.5 Pro.Which has the larger context window?
Gemini 2.5 Pro accepts 2.1M tokens vs 256K for Codestral 2.Is Codestral 2 or Gemini 2.5 Pro better for coding?
Both Codestral 2 and Gemini 2.5 Pro 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). Gemini 2.5 Pro is API-only.When were Codestral 2 and Gemini 2.5 Pro released?
Codestral 2 was released by Mistral on 2025-01-14. Gemini 2.5 Pro was released by Google on 2025-03-25.
The week's AI launches, in your inbox.
One short email every Friday, new models, leaks, and quietly-shipped APIs you missed.