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Data points: 91

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for Claude Opus 4.6 and Kimi K2 Thinking, before the detailed comparison sheet.

Decision read

Claude Opus 4.6

Claude Opus 4.6 currently has the stronger profile, with verified wins split 4 to 2.

Evidence depth

91 data points

Includes 8 benchmark rows, 2 audit samples, and 8 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 18 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs Kimi K2 Thinking

claude-opus-4-6-vs-kimi-k2-thinking

Model A

Claude

Claude Opus 4.6

Model B

MoonshotAI

Kimi K2 Thinking

Overall leaderLeadingContender
Verified metric wins4 wins2 wins
Where it leadsAverage speed, First-token latency, Provider coverage, Recent testsCheapest input price, Free providers
Model metadataClaude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.Kimi K2 Thinking exposes 262.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs.
DeveloperAnthropicMoonshot AI
Context window1M tokens262.1K tokens
Max output128K tokens262.1K tokens
ReleasedApr 2026Nov 2025
Modalities

Input

TextImageFile

Output

Text

Input

Text

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputText outputTool callingStructured outputsJSON modeReasoning
ParametersNo dataNo data
TokenizerClaudeOther
Knowledge cutoffNo dataNo data
OpenRouter IDanthropic/claude-opus-4.6-fastmoonshotai/kimi-k2-thinking
ReferencesNo dataNo data

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Metric
ClaudeClaude Opus 4.6
MoonshotAIKimi K2 Thinking
SciCode
45.7%#20
42.4%#35
Input price
$5.00/M#41
$0.600/M#23
Output price
$25.00/M#47
$2.50/M#27
Time to first token
1.44 s#57
0.93 s#33
Time to first answer token
1.44 s#34
16.49 s#68
HLE
18.6%#43
22.3%#35
GPQA
84.0%#38
83.8%#39
Output speed
44.9 tok/s#96
128.6 tok/s#38

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
ClaudeClaude Opus 4.6
MoonshotAIKimi K2 Thinking
Omini ApiWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

78

View report
70728088
MoonshotAI

Kimi K2 Thinking

kimi-k2-thinking

No audit yet

RenRen APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

78

View report
70728088
MoonshotAI

Kimi K2 Thinking

kimi-k2-thinking

No audit yet

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
ClaudeClaude Opus 4.6
MoonshotAIKimi K2 Thinking
钠 API20 tests
Claude

Claude Opus 4.6

speed / latency

42 tok/s / 2282ms

input / output

No data

MoonshotAI

Kimi K2 Thinking

speed / latency

N/A / N/A

input / output

No data

Rnglg2 API15 tests
Claude

Claude Opus 4.6

speed / latency

57 tok/s / 3926ms

input / output

No data

MoonshotAI

Kimi K2 Thinking

speed / latency

N/A / N/A

input / output

No data

QYES AI10 tests
Claude

Claude Opus 4.6

speed / latency

50 tok/s / 4968ms

input / output

No data

MoonshotAI

Kimi K2 Thinking

speed / latency

131 tok/s / 4751ms

input / output

No data

Cuz AI5 tests
Claude

Claude Opus 4.6

speed / latency

43 tok/s / 2285ms

input / output

No data

MoonshotAI

Kimi K2 Thinking

speed / latency

N/A / N/A

input / output

No data

EasyMore5 tests
Claude

Claude Opus 4.6

speed / latency

27 tok/s / 15402ms

input / output

No data

MoonshotAI

Kimi K2 Thinking

speed / latency

N/A / N/A

input / output

No data

Seamee API
Claude

Claude Opus 4.6

claude-opus-4.6

speed / latency

No data

input / output

$0/M / $0/M

MoonshotAI

Kimi K2 Thinking

moonshot-ai/Kimi-K2-Thinking

speed / latency

No data

input / output

$75.00/M / $75.00/M

3173721 API
Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$5.00/M / $25.00/M

MoonshotAI

Kimi K2 Thinking

daipai/moonshotai/kimi-k2-thinking

speed / latency

No data

input / output

$0.0010/M / $0.0010/M

Medu Chat
Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$75.00/M / $375.00/M

MoonshotAI

Kimi K2 Thinking

kimi-k2-thinking

speed / latency

No data

input / output

$0.0010/M / $0.0010/M

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and Kimi K2 Thinking: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
MoonshotAIKimi K2 Thinking
When to choose each model

Claude Opus 4.6

Claude Opus 4.6 is stronger when you prioritize Average speed, First-token latency, Provider coverage, Recent tests.

Kimi K2 Thinking

Kimi K2 Thinking is stronger when you prioritize Cheapest input price, Free providers.

FAQ

TL;DR: Claude Opus 4.6 leads across 91 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 6 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Related compare reports

Continue from Claude Opus 4.6 vs Kimi K2 Thinking into nearby model comparisons with enough verified LMSpeed data.

ClaudeClaude Opus 4.6 vs GPT-5.46 verified data pointsClaudeClaude Opus 4.6 vs GPT-56 verified data pointsClaudeClaude Opus 4.6 vs GPT-5.26 verified data pointsClaudeClaude Opus 4.6 vs Gemini 2.5 Pro6 verified data points

Data as of Jun 13, 2026, 04:21 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.