ModelRefs / GPT-5 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Cod…
GPT-5 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Cod…
GPT-5 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
GPT-5 Mini: GPT-5 Mini is OpenAI's August 2025 cost-efficient reasoning model for well-defined, latency-sensitive, and high-volume workloads. The API model supports text input and output, image input, configurable reasoning effort, and an immutable gpt-5-mini-2025-08-07 snapshot; OpenAI now classifies it as a previous-generation model.
Context window: GPT-5 Mini accepts up to 400,000 tokens, Mistral Small 3.1 up to 128,000. Confirm the limit for your specific deployment channel before relying on it.
GPT-5 Mini vs Mistral Small 3.1 at a glance
| Attribute | GPT-5 Mini | Mistral Small 3.1 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Released | 2025-08-07 | 2025-03-17 |
| Context window | 400,000 tokens | 128,000 tokens |
| Input price | $0.25/M tokens | $0.1/M tokens |
| Output price | $2/M tokens | $0.3/M tokens |
| Licence | Proprietary | Apache-2.0 |
| Self-hostable | No, hosted only | Yes, open weights |
| Modalities | text, vision | text, vision |
Where they differ most
- Reasoning: GPT-5 Mini 87%, Mistral Small 3.1 67%. GPT-5 Mini leads on this dimension.
- Cost Efficiency: GPT-5 Mini 78%, Mistral Small 3.1 95%. Mistral Small 3.1 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 GPT-5 Mini vs Mistral Small 3.1 — Benchmarks, Pricing & Cod….
Frequently asked questions
Which is better, GPT-5 Mini or Mistral Small 3.1?
GPT-5 Mini and Mistral Small 3.1 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is GPT-5 Mini cheaper than Mistral Small 3.1?
Compare $0.00025 vs $0.00010 on this page.