Mistral Large 3 2512 is Mistral’s most capable model to date, featuring a sparse mixture-of-experts architecture with 41B active parameters (675B total), and released under the Apache 2.0 license.
Model details →Mistral: Mistral Large 3 2512 vs OpenAI: o3
Mistral: Mistral Large 3 2512 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following. Use it to think through multi-step problems…
Model details →Side-by-side comparison
| Capability | Mistral: Mistral Large 3 2512 | OpenAI: o3 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 200K | 🏆 Mistral: Mistral Large 3 2512 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.50 | $2.00 | 🏆 Mistral: Mistral Large 3 2512 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.50 | $8.00 | 🏆 Mistral: Mistral Large 3 2512 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 OpenAI: o3 |
Frequently asked questions
Is Mistral: Mistral Large 3 2512 better than OpenAI: o3?
Mistral: Mistral Large 3 2512 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Mistral: Mistral Large 3 2512 and OpenAI: o3?
Input: $0.50 vs $2.00 per 1M tokens. Output: $1.50 vs $8.00 per 1M tokens.
What context windows do Mistral: Mistral Large 3 2512 and OpenAI: o3 support?
Mistral: Mistral Large 3 2512 supports up to 262K tokens. OpenAI: o3 supports up to 200K tokens.
Do both Mistral: Mistral Large 3 2512 and OpenAI: o3 support tool calling?
Mistral: Mistral Large 3 2512: yes. OpenAI: o3: yes.