Mistral Large 2 (2407) vs o3 Mini
Mistral Large 2 (2407) (2024) and o3 Mini (2025) are frontier reasoning models from MistralAI and OpenAI. Mistral Large 2 (2407) ships a 128k-token context window, while o3 Mini ships a 200k-token context window. On pricing, Mistral Large 2 (2407) costs $0.50/1M input tokens versus $1.10/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Mistral Large 2 (2407) is ~120% cheaper at $0.50/1M; pay for o3 Mini only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Mistral Large 2 (2407) | o3 Mini |
|---|---|---|
| Best for | multimodal apps and provider-routed production | reasoning-heavy apps, tool-calling agents, and provider-routed production |
| Decision fit | RAG, Long context, and Vision | Coding, RAG, and Agents |
| Context window | 128k | 200k |
| Cheapest output | $1.50/1M tokens | $4.40/1M tokens |
| Provider routes | 3 tracked | 4 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Mistral Large 2 (2407) has the lower cheapest tracked output price at $1.50/1M tokens.
- Mistral Large 2 (2407) uniquely exposes Vision in local model data.
- Local decision data tags Mistral Large 2 (2407) for RAG, Long context, and Vision.
- o3 Mini has the larger context window for long prompts, retrieval packs, or transcript analysis.
- o3 Mini has broader tracked provider coverage for fallback and procurement flexibility.
- o3 Mini uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags o3 Mini for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Mistral Large 2 (2407)
$775
Cheapest tracked route/tier: Chutes AI
o3 Mini
$1,980
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $1,205. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Mistral Large 2 (2407) and o3 Mini; plan for SDK, billing, or endpoint changes.
- o3 Mini is $2.90/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Vision before moving production traffic.
- o3 Mini adds Reasoning, Function calling, and Tool use in local capability data.
- No overlapping tracked provider route is sourced for o3 Mini and Mistral Large 2 (2407); plan for SDK, billing, or endpoint changes.
- Mistral Large 2 (2407) is $2.90/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
- Mistral Large 2 (2407) adds Vision in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-07-23 | 2025-01-31 |
| Context window | 128k | 200k |
| Parameters | 123B | — |
| Architecture | decoder only | decoder only |
| License | Mistral License | Proprietary |
| Openness | Open weights | Proprietary |
| Commercial use | Non-commercial only | Commercial use with conditions |
| Knowledge cutoff | 2024-03 | 2025-04 |
Pricing and availability
| Pricing attribute | Mistral Large 2 (2407) | o3 Mini |
|---|---|---|
| Input price | $0.50/1M tokens | $1.10/1M tokens |
| Output price | $1.50/1M tokens | $4.40/1M tokens |
| Providers |
Capabilities
| Capability | Mistral Large 2 (2407) | o3 Mini |
|---|---|---|
| Vision | Yes | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | Yes | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Mistral Large 2 (2407), reasoning mode: o3 Mini, function calling: o3 Mini, tool use: o3 Mini, and code execution: o3 Mini. Both models share structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Mistral Large 2 (2407) lists $0.50/1M input and $1.50/1M output tokens on the cheapest tracked provider, while o3 Mini lists $1.10/1M input and $4.40/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Mistral Large 2 (2407) lower by about $1.29 per million blended tokens. Availability is 3 providers versus 4, so concentration risk also matters.
Choose Mistral Large 2 (2407) when vision-heavy evaluation and lower input-token cost are central to the workload. Choose o3 Mini when coding workflow support, larger context windows, and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions.
FAQ
Which has a larger context window, Mistral Large 2 (2407) or o3 Mini?
o3 Mini supports 200k tokens, while Mistral Large 2 (2407) supports 128k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Mistral Large 2 (2407) or o3 Mini?
Mistral Large 2 (2407) is cheaper on tracked token pricing. Mistral Large 2 (2407) costs $0.50/1M input and $1.50/1M output tokens. o3 Mini costs $1.10/1M input and $4.40/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Mistral Large 2 (2407) or o3 Mini open source?
Mistral Large 2 (2407) is listed under Mistral License. o3 Mini is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Mistral Large 2 (2407) or o3 Mini?
Mistral Large 2 (2407) has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Mistral Large 2 (2407) or o3 Mini?
o3 Mini has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Mistral Large 2 (2407) and o3 Mini?
Mistral Large 2 (2407) is available on Microsoft Foundry, Chutes AI, and SiliconFlow. o3 Mini is available on OpenRouter, Azure OpenAI, OpenAI API, and Vercel AI Gateway. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-06-04. Data sourced from public model cards and provider documentation.