UnifyBench

RankingEffort benchmarks

GPT-5 Nano effort benchmarks

Compare measured Low, Medium, High and other settings. Every number keeps its source.

GPT-5 Nano

44 measured results · 4 reported effort labels · 15 benchmark/harness combinations. Model evidence and sources →

Capability score evidence

GPT-5 Nano · High: 6.0 overall comparison score. Meets the overall evidence requirements.

Which sources carry the weight?
  • Artificial Analysis · 54.0% direct comparison weight · independent
  • ARC Prize · 46.0% direct comparison weight · independent

These shares describe the comparisons entering the fit, not fractions of the final score.

How sensitive is this score?

Remove one evaluator or family and refit the graph against the same overall panel. Values use the matching dataset audited 2026-09-12. These are sensitivity checks, not confidence intervals; ranking eligibility may also change.

Removed evidenceRecomputed scoreChange
Artificial Analysis5.6-0.5
ARC Prize6.9+0.9
Datacurve5.1-0.9
LiveCodeBench6.0+0.0
Scale6.7+0.7
Terminal-Bench6.0-0.0
Cognition6.4+0.4
LiveBench6.1+0.1
SWE-rebench6.1+0.0
Epoch AI5.9-0.2
Vals AI5.8-0.2
Provider reports · Anthropic6.0+0.0
Provider reports · Moonshot AI6.0-0.0
Provider reports · Meta6.0-0.0
Provider reports · Mistral6.0+0.0
All provider reports6.0-0.0
Every benchmark family
Removed evidenceRecomputed scoreChange
deepswe5.1-0.9
arc-agi6.9+0.9
mmmu-pro6.5+0.5
epoch-game-puzzles5.6-0.4
ifbench5.6-0.4
frontiercode6.4+0.4
hle6.4+0.3
mmlu-pro6.3+0.3
omniscience5.8-0.3
critpt6.3+0.2
simpleqa6.2+0.2
livecodebench5.8-0.2
aime5.9-0.2
livebench-instructions6.1+0.1
multi-swe-bench5.9-0.1
gpqa6.1+0.1
scicode6.1+0.1
frontiermath6.1+0.1
harvey5.9-0.1
livebench-language6.1+0.1
arc-agi-36.0-0.1
gmmlu6.1+0.1
swe-atlas-qna6.0-0.1
apex-agents6.1+0.0
terminal-bench6.1+0.0
livebench-coding6.0-0.0
gdp-pdf6.1+0.0
vibe-code6.0-0.0
livebench-reasoning6.0-0.0
swe-rebench6.1+0.0
tau-bench6.0+0.0
vals-finance-agent6.0-0.0
swe-atlas-test-writing6.0-0.0
vals-code-migration6.0-0.0
gdpval6.0+0.0
vals-legal-research6.0-0.0
briefcase6.0-0.0
analyst-agent6.0+0.0
vals-excel-modeling6.0-0.0
math5006.0+0.0
automationbench6.0-0.0
itbench6.0-0.0
livebench-math6.0+0.0
swe-atlas-refactoring6.0-0.0
livebench-data6.0+0.0
enigma-eval6.0+0.0
swe-bench-pro6.0+0.0
enterprise-ops6.0+0.0
aa-lcr6.0+0.0
What evidence is missing from the fit?

Across all collected settings for this model: 45 observations, 41 contributing, 0 matched without graph weight and 4 excluded. Counts do not establish rank eligibility.

  • 3 · Benchmark family or source protocol has not been reviewed
  • 1 · No reviewed effort for this catalog observation; any separately collected effort measurement is counted separately
Inspect every observation and exclusion →

Capability profile

One configuration, seven capabilities

Comparison score · 0–100
GPT-5 Nano · High capability radarComparison scores from 0 to 100. Unknown capabilities have no point; lines stop at gaps. Hollow points are preliminary. Exact values and support labels follow the chart.AgenticHard reasoningCodingHuman prefKnowledgeMultimodalLong context50100GPT-5 Nano · High · Agentic: 4.4 · PreliminaryGPT-5 Nano · High · Hard reasoning: 6.8 · SupportedGPT-5 Nano · High · Coding: 8.3 · SupportedGPT-5 Nano · High · Knowledge: 8.6 · SupportedGPT-5 Nano · High · Multimodal: 4.6 · PreliminaryGPT-5 Nano · High · Long context: 7.2 · Preliminary

Gaps are unknown, not zero. Hollow points are preliminary.

  • Agentic

    A4.4Preliminary

  • Hard reasoning

    A6.8Supported

  • Coding

    A8.3Supported

  • Human pref

    Unknown

  • Knowledge

    A8.6Supported

  • Multimodal

    A4.6Preliminary

  • Long context

    A7.2Preliminary

Each profile belongs to the named configuration. Capability scores use a shared panel for all axes, distinct from the overall ranking panel; they are not accuracy percentages or direct head-to-head wins.

Compare this configuration →Explore the model evidence profile →

These are published benchmark scores. Supported effort estimates also appear on the Capability leaderboard. Results from different harnesses occupy different rows. Missing cells stay unknown; no scores are copied between effort levels.

Benchmark / sourceMinimalLowMediumHigh
AIME 2025Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

27.33%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
78.33%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

83.67%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

AA-LCR v1.1Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

20%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
43.67%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

45%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

CritPtArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Benchmark developed by Argonne and UIUC, with contributions from 60+ researchers globally · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

0%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
0%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

0%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

Global-MMLU-LiteArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

Not reportedNot reportedNot reported
81.23%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

GPQA DiamondArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

42.83%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
66.97%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

67.58%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

Humanity's Last ExamArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

3.99%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
8.71%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

9.5%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

IFBenchArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

32.52%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
65.92%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

67.55%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

LiveCodeBenchArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

46.98%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
76.3%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

78.94%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

MMLU-ProArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

55.64%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
77.24%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

78.03%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

MMMU-ProArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

31.79%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
58.21%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

60.98%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

AA-Omniscience IndexArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

AA-Omniscience Index (higher is better) measures knowledge reliability and hallucination. It rewards correct answers, penalizes hallucinations, and has no penalty for refusing to answer. Scores range from -100 to 100, where 0 means as many correct as incorrect answers, and negative scores mean more incorrect than correct. · Evaluation results measured independently by Artificial Analysis

Unit: index. Source collected 2026-09-12.

-64.07
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
-25.78
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

-28.67
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

AA-Omniscience AccuracyArtificial Analysis · 6000 questions; 1 attempt; correct-answer share; GPT-5.6 Luna medium grader
Benchmark details

AA-Omniscience Accuracy (higher is better) measures the proportion of correctly answered questions out of all questions, regardless of whether the model chooses to answer · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

13.08%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
17.58%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

19.08%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

𝜏²-Bench TelecomArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

25.73%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
30.41%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

36.55%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

Terminal-Bench HardArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-09-12.

6.82%
Reported settings

GPT-5 nano (minimal); Model source: https://artificialanalysis.ai/models/gpt-5-nano-minimal

Not reported
17.42%
Reported settings

GPT-5 nano (medium); Model source: https://artificialanalysis.ai/models/gpt-5-nano-medium

12.12%
Reported settings

GPT-5 nano (high); Model source: https://artificialanalysis.ai/models/gpt-5-nano

ARC-AGI-2ARC Prize · v2 Semi-Private
Benchmark details

Original public board. Configuration and task coverage may differ; inspect source.

Unit: percent. Source collected 2026-09-12.

0%
Reported settings

GPT-5 Nano (Minimal); Source model ID: gpt-5-nano-2025-08-07-minimal; 120 tasks

0%
Reported settings

GPT-5 Nano (Low); Source model ID: gpt-5-nano-2025-08-07-low; 120 tasks

0.88%
Reported settings

GPT-5 Nano (Medium); Source model ID: gpt-5-nano-2025-08-07-medium; 120 tasks

2.61%
Reported settings

GPT-5 Nano (High); Source model ID: gpt-5-nano-2025-08-07-high; 120 tasks

What these comparisons mean

Each source reports its own effort labels. Matching labels do not establish equal compute budgets or identical fallback behavior. Open Reported settings to inspect the exact model name, agent and task coverage. Multiple results at one level remain visible rather than selecting the best. Source-reported None or Non-reasoning labels are not treated as evidence that an API supports those settings.

These measurements use their own dated source collection. The leaderboard fits identified configurations jointly; it contains no pooled model ratings. Explicit thinking budgets are separate configurations. Read the methodology.

Download all effort benchmark results · 7,424 results across 240 models · Collected 2026-09-12