Gemini 4 Argon
Claude Opus 5.5
Muse Wonder
MiMo-V2.6-Pro
Qwen3.8-Max
Kimi K3
GLM-5.3
ERNIE 5.1
DeepSeek-V4.1-Flash-20260910
Grok 4.20 Beta
amazon-nova-experimental-chat
Dola Seed 2.0 Pro
NVIDIA-Nemotron-3-Ultra-550B-A55B
Gemma 4 31B
Step 5 Preview
GPT-5.4 nano
GPT-5.4 nano is a proprietary model from OpenAI, released Mar 17, 2026. It ranks #184 of 351 on the LMArena text leaderboard with a rating of 1372. It costs $0.20 per million input tokens and $1.25 per million output tokens, with a 400K-token context window.
- Developer
- OpenAI
- Released
- Mar 17, 2026
- Context window
- 400K
- Price in / out, per 1M tokens
- $0.20 / $1.25
- Weights
- Proprietary
- Inputs
- Files, Images, Text
- Reasoning
- Yes
- Tool use
- Yes
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| SWE-benchCoding | 69.80% | 61 / 85 | $0.10 | |
| Vibe Code BenchCoding | 26.10% | 75 / 115 | $1.28 | |
| LiveCodeBenchCoding | 84.01% | 42 / 143 | $0.2 / $1.25 | |
| Tax Agent BenchFinance | 4.97% | 72 / 76 | $0.07 | |
| Legal Research BenchLaw | 6.25% | 79 / 85 | $0.14 | |
| MedCodeMedicine | 41.03% | 59 / 107 | $0.2 / $1.25 | |
| GPQA DiamondReasoning | 77.53% | 78 / 138 | $0.2 / $1.25 | |
| MMLU-ProReasoning | 77.17% | 108 / 138 | $0.2 / $1.25 | |
| AIMEReasoning | 88.75% | 28 / 96 | $0.2 / $1.25 | |
| MMMUReasoning | 73.58% | 59 / 93 | $0.2 / $1.25 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1372 | 184 / 351 | 62.4K |
| CodingLMArena | 1405 | 171 / 346 | 17.7K |
| MathLMArena | 1406 | 155 / 339 | 3.3K |
| Creative writingLMArena | 1314 | 211 / 349 | 10.4K |
| Instruction followingLMArena | 1362 | 178 / 351 | 21.5K |
| Hard promptsLMArena | 1381 | 177 / 351 | 41.3K |
| Multi-turnLMArena | 1382 | 175 / 349 | 11.8K |
| Long queriesLMArena | 1366 | 187 / 330 | 27.7K |
| ExpertLMArena | 1396 | 165 / 305 | 6.4K |
| Legal and governmentIndustries | 1368 | 192 / 325 | 5K |
| Medicine and healthcareIndustries | 1369 | 189 / 325 | 4.8K |
| Business and financeIndustries | 1366 | 180 / 344 | 12.6K |
| ChineseLanguages | 1391 | 187 / 328 | 3.8K |
| SpanishLanguages | 1371 | 176 / 249 | 1.9K |
| GermanLanguages | 1368 | 157 / 261 | 935 |
| FrenchLanguages | 1395 | 161 / 252 | 2.1K |
| JapaneseLanguages | 1343 | 133 / 236 | 610 |
| VisionLMArena | 1196 | 96 / 146 | 25.6K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare GPT-5.4 nano
OpenAI
The lab behind GPT and ChatGPT, which brought large language models to hundreds of millions of people. Founded 2015, based in San Francisco. openai.com
Questions
Who makes GPT-5.4 nano?
GPT-5.4 nano is made by OpenAI, founded 2015 and based in San Francisco.
How much does GPT-5.4 nano cost?
$0.20 per million input tokens and $1.25 per million output tokens, at its provider’s list price.
What is GPT-5.4 nano’s context window?
400K tokens (400,000).
How does GPT-5.4 nano rank?
#184 of 351 on LMArena’s text leaderboard, rated 1372 (95% interval 1369–1376) from 62,375 votes, as of Oct 22, 2026.
Is GPT-5.4 nano open source?
No. GPT-5.4 nano is proprietary and served through its provider’s API.