Ctrl K
Back to models

OpenAI

GPT-5.4 nano

  • Released
  • Closed weights
Compare
Intelligence Index

Extra high setting

20.7
Measured · Artificial Analysis v4.3.2
API price from
$0.20 in / $1.25 out / 1M tokOpenAI · direct API
Context window
400K tok

Performance profile

ReasoningArchived source
81.7%
GPQA Diamond
CodingArchived source
47.2%
SciCode
Cost efficiencyArchived source
113.2pts / $
Intelligence ÷ eval cost

Capabilities

Context window

Modalities

Reasoning modes

Integration

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
GPT-5.4 nano
Cost per task (USD) · log scale
GPT-5.4 nanoX-High
Intelligence Index
20.7
Cost / task
$0.1831
Evaluation time
6.5m

Pricing & access

API route
OpenAIAPI
Tier & contextStandard

USD per 1M tokens

Input
$0.20
Output
$1.25
Cached input
$0.02
Responses API tool compatibility (opens in a new tab)
  • Web search
  • File search
  • Image generation
  • Code execution
  • Shell
  • File edits
  • Skills
  • MCP

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

GPT-5.4 nano · Extra highArchived

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  4. 4Claude Sonnet 5.5Max55.0%
  5. 5GPT-6 AstraMax54.7%
  6. 6Muse Wonder FullMax53.6%
  7. 7GPT-6.1 SolMax52.9%
  8. 8Muse WonderMax50.1%
  9. 9MiMo-V2.6-ProReasoning49.4%
  10. 10Muse Spark 1.3Max48.7%

Peers use their best measured result on this benchmark.