Compare / head-to-head

Claude Opus 4.6vsKimi K2 Thinking

Claude Opus 4.6 leads 2 of 2 shared benchmarks. Claude Opus 4.6 has the larger context window (1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
2 – 0
Claude Opus 4.6 leads
Cheaper per token
—
list price, input + output
Larger context
Claude Opus 4.6
1M tokens
Providers
2 providers
Anthropic · Moonshot AI
Claude Opus 4.6
Anthropic · released 2026-02-05
textvision
Context
1M
Max out
128K
Input /1M
$5 ↗
Output /1M
$25 ↗
Cached /1M
$0.5
Scores
46 · 11 core
Kimi K2 Thinking
Moonshot AI · released 2025-11-06
text
Context
256K
Max out
—
Input /1M
—
Output /1M
—
Cached /1M
—
Scores
17 · 9 core
Quality

Benchmark matrix

BenchmarkClaude Opus 4.6Kimi K2 ThinkingΔEdge
Reported by both · 2
SimpleBench (SimpleBench)67.6% ↗39.6% ↗+28 ptClaude Opus 4.6
WeirdML (Håvard Tveit Ihle)78% ↗42.8% ↗+35.2 ptClaude Opus 4.6
Only Claude Opus 4.6 reports · 36
SWE-bench Verified80.8% ↗not reported——
GPQA Diamond91.3% ↗not reported——
AIME 202696.7% ↗matharenanot reported——
LMArena Elo1497.5 ↗not reported——
APEX-Agents (Mercor)46.3% ↗not reported——
ARC-AGI-2 (Verified)68.8% ↗not reported——
Chess Puzzles (Epoch AI run)17% ↗epoch runnot reported——
EBR-bench (Epoch AI run)12.7% ↗epoch runnot reported——
FrontierMath Tier 4 v2 (Epoch AI run)26.8% ↗epoch runnot reported——
FrontierMath Tiers 1-3 v2 (Epoch AI run)66% ↗epoch runnot reported——
Furniture Assembly (Epoch AI run)28.3% ↗epoch runnot reported——
GSO Opt@1 (GSO)37.3% ↗not reported——
LiveBench Agentic Coding (LiveBench)49% ↗not reported——
LiveBench Coding (LiveBench)78.2% ↗not reported——
LiveBench Data Analysis (LiveBench)69.9% ↗not reported——
LiveBench Instruction Following (LiveBench)63.3% ↗not reported——
LiveBench Language (LiveBench)83.3% ↗not reported——
LiveBench Mathematics (LiveBench)89.3% ↗not reported——
LiveBench Reasoning (LiveBench)88.7% ↗not reported——
LMArena Vision (LMArena)1299.4 ↗not reported——
LMArena WebDev (LMArena)1545.9 ↗not reported——
MCP Atlas59.5% ↗not reported——
MMMLU91.1% ↗not reported——
MMMU-Pro (no tools)73.9% ↗not reported——
MMMU-Pro (with tools)77.3% ↗not reported——
Mystery Game Puzzles (Epoch AI run)25% ↗epoch runnot reported——
OSWorld-Verified72.7% ↗not reported——
OTIS Mock AIME 2024-2025 (Epoch AI run)94.4% ↗epoch runnot reported——
SAGE (Vals AI)51.6% ↗not reported——
SimpleQA Verified47% ↗epoch runnot reported——
SWE-bench Verified (Epoch AI run)78.7% ↗epoch runnot reported——
tau2-bench Banking Knowledge (Sierra)27.3% ↗not reported——
Tau2-bench Retail91.9% ↗not reported——
Tau2-bench Telecom99.3% ↗not reported——
Terminal-Bench 2.065.4% ↗not reported——
Vending-Bench 2 (Andon Labs)8017.59 ↗not reported——
Only Kimi K2 Thinking reports · 15
AIME25 (no tools)not reported94.5% ↗——
BrowseComp (w/ tools)not reported60.2% ↗——
BrowseComp-ZH (w/ tools)not reported62.3% ↗——
GPQA (no tools)not reported84.5% ↗——
HLE (Text-only) (no tools)not reported23.9% ↗——
HLE (Text-only) (w/ tools)not reported44.9% ↗——
HMMT25 (no tools)not reported89.4% ↗——
IMO-AnswerBench (no tools)not reported78.6% ↗——
LiveCodeBenchV6 (no tools)not reported83.1% ↗——
MMLU-Pro (no tools)not reported84.6% ↗——
Multi-SWE-bench (w/ tools)not reported41.9% ↗——
SciCode (no tools)not reported44.8% ↗——
SWE-bench Multilingual (w/ tools)not reported61.1% ↗——
SWE-bench Verified (w/ tools)not reported71.3% ↗——
Terminal-Bench (w/ simulated tools (JSON))not reported47.1% ↗——
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude Opus 4.6 minus Kimi K2 Thinking in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecClaude Opus 4.6Kimi K2 ThinkingEdge
Context window1M tokens256K tokensClaude Opus 4.6
Max output128K tokens——
Input price / 1M$5 ↗——
Output price / 1M$25 ↗——
Cached input / 1M$0.5 ↗——
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$30——
Modalitiestext · visiontextClaude Opus 4.6
Released2026-02-052025-11-06—
Cited benchmark scores4617—
Reliability

Provider status

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