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Data checked September 25, 2026
Data checked September 25, 2026
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T/TTokens or Towers

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Data checked September 25, 2026 · Every number links to its sourceRSS · Source on GitHub
Leaderboard/OpenAI
OpenAI

OpenAI · GPT-5.4

GPT-5.4 nano

Closed weightsSupersededproprietary

Older smallest OpenAI model still listed on the API pricing page; GPT-6 Luna is now cheaper.

AA Intelligence
20.7#65 of 142
Input / output per 1M
$0.20/ $1.25
Output speed
170tok/s
Context window
400K tokens

Composite indexes

  • Artificial Analysis Intelligence Index#65 of 142
    21independentAA Intelligence Index v4.3.2, xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Opus 5.5 at 58

Coding

  • Terminal-Bench 4.0#50 of 88
    0.5%independentTerminal-Bench 4.0 (AA harness), xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Mythos 5.1 at 60.9%

  • Terminal-Bench 2.x#47 of 103
    60.7%independentTerminal-Bench 2.1 (AA harness), xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Fable 5.1 at 91.4%

  • SciCode#49 of 94
    47.2%independentxhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Opus 5.5 at 66.9%

Agents and tool use

  • GDPval-AA#58 of 103
    937independentGDPval-AA, xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Opus 5.5 at 1846

  • τ²-Bench#34 of 88
    76%independenttelecom (AA), xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: GLM-5.2 at 99.1%

Reasoning and knowledge

  • Humanity’s Last Exam#59 of 147
    28.3%independentno tools (AA), xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Opus 5.5 at 61.4%

  • GPQA Diamond#68 of 142
    81.7%independentAA, xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: GPT-6 Astra at 96.1%

  • CritPt#42 of 139
    9.3%independentxhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: GPT-5.6 Sol at 32.3%

  • ARC-AGI-2#22 of 25
    5.7%independentsemi-private, XHighARC Prize leaderboard ↗

    Leader: GPT-6 Astra at 95%

Vision and long context

  • AA Long Context Reasoning#53 of 139
    76.7%independentxhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Kimi K3 at 88.7%

  • MMMU-Pro#48 of 72
    65.4%independentAA, xhighArtificial Analysis: GPT-5.4 nano (xhigh) ↗

    Leader: Claude Opus 5.5 at 87.7%

Human preference

  • LMArena Text#47 of 54
    1402independentgpt-5.4-nano-high, style control default, vote cutoff 2026-09-13LMArena Text leaderboard ↗

    Leader: Claude Fable 5 at 1506

Other published results

ResultScoreReported bySource
AA-Omniscience Index · xhigh-29.5 index (-100 to 100)independentArtificial Analysis: GPT-5.4 nano (xhigh) ↗
AutomationBench-AA (partial score) · xhigh6%independentArtificial Analysis: GPT-5.4 nano (xhigh) ↗

Specs

Released
March 17, 2026
Parameters
Undisclosed
Size class
Undisclosed
Input
text, image
Output
text
Context
400K tokens
Max output
128K tokens
Cached input
$0.02 / 1M
Blended 70/30
$0.515 / 1M
First token
86.70s
  • Price: OpenAI API pricing ↗ Standard.
  • Speed: Artificial Analysis: GPT-5.4 nano (xhigh) (median output speed; TTFT is time to first chunk incl. reasoning) ↗

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