New: Agent Index for knowledge work is live.Explore the index ↗

Across the task benchmarks we track, Kimi K3.1 Pro’s strongest relative results are in web research, knowledge work, and work automations. On BrowseComp, it scores 92.1%, ranking #1 among 3 models with reported results in our dataset.

Updated: Data as of:
🥇

Strongest results

Strongest results for Kimi K3.1 Pro in tracked evaluation cohorts
BenchmarkMeasuresScore
Agent Index ↗v1.2 PreviewOverall agent capability67.4 / 100#6 of 26
Terminal-Bench ↗4.0 / mini-swe-agentWorking in a terminal67.17%#1 of 56
BrowseComp ↗Published open-model reportsWeb research92.1%#1 of 8
GDPval-AA ↗2.1Knowledge work1,858.05 Elo#2 of 38

Model details

Open source / open weights17 benchmarks
Specifications for Kimi K3.1 Pro
ModelKimi K3.1 Pro
Agent Index v1.267.4 / 100 · Rank 6 · Preview
CreatorMoonshot AI (opens in a new tab)
AvailabilityOpen source / open weights
Context size1,000,000 tokens (opens in a new tab)
Max output1,048,576 tokens (opens in a new tab)
Knowledge cutoffNot reported
LicenseNot reported

Pricing and performance

Per provider and reported configuration. Prices are USD per 1M tokens.

Provider offerings for Kimi K3.1 Pro
Provider / configurationContexttokensInputUSD / 1M tokensOutputUSD / 1M tokensLatencyTTFT · secondsSpeedtokens / sec
Kimi K3.1 Pro1,000,000$2.00 (opens in a new tab)$10.00 (opens in a new tab)3.427 (opens in a new tab)31.249 (opens in a new tab)
Kimi K3.1 Pro High Speed1,000,000$4.00 (opens in a new tab)$20.00 (opens in a new tab)2.683 (opens in a new tab)76.93 (opens in a new tab)

Benchmark performance

Kimi K3.1 Pro in color, alongside leading models. Latest stored reports, best effort per report date.

Reported benchmarks

All published results in our dataset, with versions, evaluation settings, and sources.

All published benchmark reports for Kimi K3.1 Pro
BenchmarkScoreEvaluation setupSource
AA-Briefcase1.1 / combined EloCombined Elo · Higher is better1,675.78 Eloselection: best reported configuration per release · Kimi K3.1 Pro · tools: benchmark-definedArtificial Analysis (opens in a new tab)independent
AutomationBench-AA1.0.6 / AA private 657Objectives completed without guardrail violations · Higher is better73.298%Kimi K3.1 Pro; Private 657 tasks; 50 turns; objective completionArtificial Analysis (opens in a new tab)independent
AutomationBench-AA1.0.6 / AA private 657Objectives completed without guardrail violations · Higher is better73.3%Artificial Analysis evaluation setupArtificial Analysis (opens in a new tab)independent
BrowseCompKimi K3.1 comparison / 200K compactionAccuracy · Higher is better92.1%200K context compaction; max 500 steps; temperature 1; top-p 1Moonshot AI ↗ (opens in a new tab)provider reported
BrowseCompPublished open-model reportsAccuracy · Higher is better92.1%harness comparison: provider-reported; settings differ across models · 200K context compaction; max 500 steps; temperature 1; top-p 1; preserved original track kimi31-report-200k-500stepsMoonshot AI ↗ (opens in a new tab)provider reported
GDP.pdf100 tasks / All-pass / five attemptsAccuracy · Higher is better31.4%selection: best reported configuration per release · Kimi K3.1 Pro · tools: benchmark-definedArtificial Analysis (opens in a new tab)independent
GDPval-AA2.1Elo · Higher is better1,858.05 EloKimi K3.1 Pro; 220 tasks; Stirrup agent; pairwise EloArtificial Analysis (opens in a new tab)independent
HLE-Diamond1,000 questions / no toolsAccuracy · Higher is better37.3%selection: best reported configuration per release · Kimi K3.1 Pro · No toolsArtificial Analysis (opens in a new tab)independent
Humanity's Last ExamStable HLE — full setAccuracy · Higher is better51.1%Max effort; temperature=1.0; top_p=0.95; full 2500-question set. · subset: full · No toolsMoonshot AI ↗ (opens in a new tab)provider reported
Humanity's Last ExamStable HLE — full setAccuracy · Higher is better70%Max effort; temperature=1.0; top_p=0.95; full 2500-question set. · subset: full · Tools enabledMoonshot AI ↗ (opens in a new tab)provider reported
Humanity's Last ExamStable HLE — text-only subsetAccuracy · Higher is better52.5%question count: 2158 · reported precision decimals: 1 · Kimi K3.1 Pro; original HLE; 2,158 text-only questions; no tools; pass@1; chart labels rounded to one decimal. · source model href: /models/kimi-k3-1-pro · subset: text · No toolsArtificial Analysis (opens in a new tab)independent
LiveBench: Agentic2.0 / 2026-10-25Accuracy · Higher is better39.1%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: agenticLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Browser Use2.0 / 2026-10-25Accuracy · Higher is better75.9%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: browser-useLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Coding2.0 / 2026-10-25Accuracy · Higher is better81.8%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: codingLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Data Analysis2.0 / 2026-10-25Accuracy · Higher is better79.1%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: data-analysisLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Design2.0 / 2026-10-25Accuracy · Higher is better77.8%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: designLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Reasoning2.0 / 2026-10-25Accuracy · Higher is better91.1%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: reasoningLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
LiveBench: Research2.0 / 2026-10-25Accuracy · Higher is better77.9%release: 2026-10-25 · Highest supported effort unless publisher reports an exception; single run · suite: researchLiveBench ↗ (opens in a new tab)benchmark publisher · 2026-10-25
Terminal-Bench4.0 / mini-swe-agentTask success · Higher is better67.172%harness: mini-swe-agent · repeats: 3 · selection: best reported configuration per release · Kimi K3.1 ProArtificial Analysis (opens in a new tab)independent