GPT-5 mini vs Mistral Large 3
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by OpenAI
|
by Mistral
|
|---|---|---|
| Overview | ||
| Status | Current mid tier | Current mid tier |
| Released | Aug 7, 2025 | Nov 1, 2025 |
| Pricing per million tokens | ||
| Input | $0.250/Mtok | $0.500/Mtok |
| Output | $2.00/Mtok | $1.50/Mtok |
| Blended avg | $0.688/Mtok | $0.750/Mtok |
| Cached input | $0.025/Mtok | — |
| Specifications | ||
| Context window | 400K tokens | 128K tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
text
|
| Benchmarks sources: Artificial Analysis / Mistral model card, Artificial Analysis | ||
| Independent composite scores measured for both models — each on its own scale | ||
| AA Intelligence Index | 25.8 | 15.9 |
| AA Agentic Index | 19.6 | 5.5 |
| AA-Omniscience Index (−100–100) | -17.3 | -39.6 |
| LMSYS Chatbot Arena | — | 1414.1 ELO |
| Per-benchmark results published for Mistral Large 3 only — no independent per-benchmark scores exist for GPT-5 mini yet | ||
| Avg benchmark score | — | 53.6 |
| Perf / dollar | — | 71.5 |
| GPQA Diamond | — | 58 |
| SWE-Bench Verified | — | 35 |
| Humanity's Last Exam | — | 18 |
| ARC-AGI 2 | — | 20 |
| AIME 2025 | — | 52 |
| MMMLU | — | 78 |
| BFCL | — | 68 |
| HumanEval | — | 85 |
| MATH 500 | — | 68 |
| Providers | ||
| Available from |
OpenAI — $0.250/$2.00/Mtok
|
Mistral — $0.500/$1.50/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | GPT-5 mini | Mistral Large 3 | Savings |
|---|---|---|---|
| 1M tokens | $0.69 | $0.75 | $0.06 (8%) |
| 10M tokens | $6.88 | $7.5 | $0.63 (8.4%) |
| 100M tokens | $68.75 | $75 | $6.25 (8.3%) |
| 1000M tokens | $687.5 | $750 | $62.5 (8.3%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $0.688/Mtok blended vs $0.750 — 8.3% less on the same 50/50 token mix
- your workload re-reads context (agents, RAG, long chats): cached input costs $0.025/Mtok — 90% off its list input price, a discount Mistral Large 3 doesn't offer
- you need the longer context: 400K tokens vs 128K (3.1×)
- this pairing gives Mistral Large 3 no edge on price, context, cache discount, or measured performance — pick it only for qualitative fit (ecosystem, compliance, model behavior on your prompts)
The cheaper option here — GPT-5 mini costs $0.688/Mtok blended on OpenAI.
Summary
GPT-5 mini by OpenAI costs $0.250/Mtok input and $2.00/Mtok output, with a 400K-token context window. It supports text, image input.
Mistral Large 3 by Mistral costs $0.500/Mtok input and $1.50/Mtok output, with a 128K-token context window. It supports text input.
On a blended cost basis, GPT-5 mini is 8.3% cheaper than Mistral Large 3.It also has a larger context window.
The two aren't directly comparable on average benchmark score: Mistral Large 3 has published per-benchmark results, while GPT-5 mini does not yet — it is measured today on independent composites (see the table above).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.