ModelRefs / o3 vs Mistral Large 2
o3 vs Mistral Large 2
o3 vs Mistral Large 2: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Mistral Large 2: Mistral Large 2 is Mistral AI's 2024 flagship commercial model with a 128,000-token context window, built for instruction following, multilingual tasks and function calling in agentic workflows. Both releases are now retired on Mistral's own API: mistral-large-2407 on 30 March 2025, replaced by Mistral Large 3, and mistral-large-2411 on 31 May 2026, replaced by Mistral Medium 3.5.
o3: o3 is OpenAI's April 2025 reasoning model, applying deliberate chain-of-thought computation at inference time to mathematics, science and competitive programming tasks, and the release that brought OpenAI's scalable test-time compute approach to its production API. OpenAI has since deprecated it, scheduling the o3-2025-04-16 snapshot to shut down on 11 December 2026 with gpt-5.6-sol as the replacement.
Context window: Mistral Large 2 accepts up to 128,000 tokens, o3 up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
Mistral Large 2 vs o3 at a glance
| Attribute | Mistral Large 2 | o3 |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Released | 2024-11-01 | 2025-04-16 |
| Context window | 128,000 tokens | 200,000 tokens |
| Input price | $2/M tokens | $10/M tokens |
| Output price | $6/M tokens | $40/M tokens |
| Licence | Mistral Commercial | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text | text, vision |
Where they differ most
- Cost Efficiency: Mistral Large 2 56%, o3 13%. Mistral Large 2 leads on this dimension.
- Reasoning: Mistral Large 2 86%, o3 86%. o3 leads on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to o3 vs Mistral Large 2.
Frequently asked questions
Which is better, o3 or Mistral Large 2?
o3 and Mistral Large 2 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is o3 cheaper than Mistral Large 2?
Compare $0.0100 vs $0.00200 on this page.