ModelRefs / o4 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Coding…
o4 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Coding…
o4 Mini vs Mistral Small 3.1: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
o4 Mini: o4 Mini is OpenAI's next-generation efficient reasoning model adding vision support to the mini reasoning tier. It is optimized for agentic tasks requiring both image understanding and step-by-step logic at low cost-per-task.
Context window: Mistral Small 3.1 accepts up to 128,000 tokens, o4 Mini up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
Mistral Small 3.1 vs o4 Mini at a glance
| Attribute | Mistral Small 3.1 | o4 Mini |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Released | 2025-03-17 | 2025-09-01 |
| Context window | 128,000 tokens | 200,000 tokens |
| Input price | $0.1/M tokens | $1.1/M tokens |
| Output price | $0.3/M tokens | $4.4/M tokens |
| Licence | Apache-2.0 | Proprietary |
| Self-hostable | Yes, open weights | No, hosted only |
| Modalities | text, vision | text, vision |
Where they differ most
- Cost Efficiency: Mistral Small 3.1 95%, o4 Mini 63%. Mistral Small 3.1 leads on this dimension.
- Reasoning: Mistral Small 3.1 67%, o4 Mini 78%. o4 Mini 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 o4 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Coding….
Frequently asked questions
Which is better, o4 Mini or Mistral Small 3.1?
o4 Mini and Mistral Small 3.1 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is o4 Mini cheaper than Mistral Small 3.1?
Compare $0.00110 vs $0.00010 on this page.