GPT-5 Nano
- Context
- 400K
- 128K max output
- Input price
- $0.050
- per 1M tokens · OpenAI API
- Output price
- $0.40
- per 1M tokens
- Epoch Capabilities Index
- 139.4
- #71 of 71 listed
- LMArena Text
- 1,338
- #79 of 79 listed
Where to run it
3 offerings · prices as listed| Meter | Tier | Price |
|---|---|---|
| Input | Standard | $0.050 / 1M tokens |
| Batch | $0.025 / 1M tokens | |
| Flex tier | $0.025 / 1M tokens | |
| Output | Standard | $0.40 / 1M tokens |
| Batch | $0.20 / 1M tokens | |
| Flex tier | $0.20 / 1M tokens | |
| Cache read | Standard | $0.005 / 1M tokens |
| Batch | $0.003 / 1M tokens | |
| Flex tier | $0.003 / 1M tokens | |
Azure OpenAI in Foundry (opens in a new tab) gpt-5-nano | ||
| Input | Standard | $0.050 / 1M tokens |
| Output | Standard | $0.40 / 1M tokens |
| Cache read | Standard | $0.010 / 1M tokens |
Azure OpenAI in Foundry (opens in a new tab) gpt-5-nano | ||
| Input | Standard | $0.060 / 1M tokens |
| Output | Standard | $0.44 / 1M tokens |
| Cache read | Standard | $0.010 / 1M tokens |
Cited scores
From third-party leaderboards, not measured by us- Epoch Capabilities Index 139.4
#71 of 71 listed models · CI 134.5–141.5
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- LMArena Text 1,338
#79 of 79 listed models · high effort · CI 1,331–1,345 · 8,111 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- Epoch AI · FrontierMath Tiers 1–3 20%
#55 of 56 listed models · high effort · ±2.37
Also listed: low effort 6% · minimal effort 1.8%
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- Epoch AI · GPQA Diamond 69.4%
#62 of 64 listed models · high effort · ±2.76
Also listed: medium effort 67.4% · low effort 57.6% · minimal effort 48.5%
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- LMArena Text · Chinese 1,377
#76 of 79 listed models · high effort · CI 1,351–1,404 · 507 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- LMArena Text · Coding 1,384
#78 of 79 listed models · high effort · CI 1,370–1,399 · 1,663 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- LMArena Vision 1,159
#47 of 49 listed models · high effort · CI 1,148–1,170 · 3,948 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 13, 2026 · changes we made