Compare / head-to-head
GPT-5 minivsGPT-5 nano
GPT-5 mini leads 7 of 7 shared benchmarks. GPT-5 nano is 5x cheaper per token. Both offer a 400K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
7 – 0
GPT-5 mini leads
Cheaper per token
GPT-5 nano
5x cheaper, input + output
Larger context
Tie
both 400K tokens
Provider uptime (30d)
95.3216%
OpenAI
GPT-5 mini
OpenAI · released 2025-08-07
textvision
GPT-5 nano
OpenAI · released 2025-08-07
textvision
Quality
Benchmark matrix
7 shared · 1 only GPT-5 mini · 0 only GPT-5 nano| Benchmark | GPT-5 mini | GPT-5 nano | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 7 | ||||
| SWE-bench Verified | 71% ↗ | 54.7% ↗ | +16.3 pt | GPT-5 mini |
| GPQA Diamond | 81.6% ↗ | 69.4% ↗epoch | +12.2 pt | GPT-5 mini |
| AIME 2025 | 87.5% ↗matharena ⚠ | 85% ↗matharena ⚠ | +2.5 pt | GPT-5 mini |
| FrontierMath Tier 4 v2 (Epoch AI run) | 12.2% ↗epoch | 2.4% ↗epoch | +9.8 pt | GPT-5 mini |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 46.7% ↗epoch | 20% ↗epoch | +26.7 pt | GPT-5 mini |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 86.7% ↗epoch | 81.1% ↗epoch | +5.6 pt | GPT-5 mini |
| SimpleQA Verified | 21.6% ↗epoch | 11.7% ↗epoch | +9.9 pt | GPT-5 mini |
| Only GPT-5 mini reports · 1 | ||||
| SWE-bench Verified (Epoch AI run) | 64.7% ↗epoch | not reported | — | — |
| Only GPT-5 nano reports · 0 | ||||
| GPT-5 nano reports nothing GPT-5 mini does not. | ||||
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 mini minus GPT-5 nano 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 mini | GPT-5 nano | Edge |
|---|---|---|---|
| Context window | 400K tokens | 400K tokens | Tie |
| Max output | 128K tokens | 128K tokens | Tie |
| Input price / 1M | $0.25 ↗ | $0.05 ↗ | GPT-5 nano |
| Output price / 1M | $2 ↗ | $0.4 ↗ | GPT-5 nano |
| Cached input / 1M | $0.025 ↗ | $0.005 ↗ | GPT-5 nano |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $2.25 | $0.45 | GPT-5 nano |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-08-07 | 2025-08-07 | — |
| Cited benchmark scores | 9 | 7 | — |
Reliability
OpenAI status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GPT-5 mini vs …
Models sharing the most benchmarksMore matchups
GPT-5 nano vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GPT-5 mini and GPT-5 nano on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.