Compare / head-to-head
GPT-5 ProvsMistral Small 4
GPT-5 Pro leads 1 of 1 shared benchmark. Mistral Small 4 is 180x cheaper per token. GPT-5 Pro has the larger context window (400K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 0
GPT-5 Pro leads
Cheaper per token
Mistral Small 4
180x cheaper, input + output
Larger context
GPT-5 Pro
400K tokens
Provider uptime (30d)
94.2446% · 100%
OpenAI · Mistral AI
GPT-5 Pro
OpenAI · released 2025-10-06
textvision
Mistral Small 4
Mistral AI · released 2026-03-16
textvision
Quality
Benchmark matrix
1 shared · 2 only GPT-5 Pro · 2 only Mistral Small 4| Benchmark | GPT-5 Pro | Mistral Small 4 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| GPQA Diamond | 88.4% ↗ | 71.2% ↗ | +17.2 pt | GPT-5 Pro |
| Only GPT-5 Pro reports · 2 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | 19.5% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 55.8% ↗epoch | not reported | — | — |
| Only Mistral Small 4 reports · 2 | ||||
| MMLU-Pro | not reported | 78% ↗ | — | — |
| Artificial Analysis Long Context Reasoning | not reported | 0.72 ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-5 Pro minus Mistral Small 4 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | GPT-5 Pro | Mistral Small 4 | Edge |
|---|---|---|---|
| Context window | 400K tokens | 256K tokens | GPT-5 Pro |
| Max output | 272K tokens | — | — |
| Input price / 1M | $15 ↗ | $0.15 ↗ | Mistral Small 4 |
| Output price / 1M | $120 ↗ | $0.6 ↗ | Mistral Small 4 |
| Cached input / 1M | — | $0.015 ↗ | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $135 | $0.75 | Mistral Small 4 |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-10-06 | 2026-03-16 | — |
| Cited benchmark scores | 3 | 3 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GPT-5 Pro vs …
Models sharing the most benchmarksMore matchups
Mistral Small 4 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GPT-5 Pro and Mistral Small 4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.