LLM Comparison

Claude Sonnet 5.5 vs Kimi K3: benchmark scores, pricing & comparison.

Side-by-side Claude Sonnet 5.5 vs Kimi K3 comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Verdict: Claude Sonnet 5.5 ranks higher (#3 vs #34) and wins 10 of 10 shared benchmarks; Claude Sonnet 5.5 costs less ($2.00/$10.0 vs $3.00/$15.0 per 1M tokens).

Open live leaderboardClaude Sonnet 5.5 model pageKimi K3 model page
Rank #3 vs #34AskClash overall scores 77.7 vs 50.0.
Pricing $2.00/$10.0 vs $3.00/$15.0Input and output token prices per 1M tokens when published.
Proprietary vs Open WeightAnthropic vs Moonshot AI.

Claude Sonnet 5.5 vs Kimi K3 benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricClaude Sonnet 5.5Kimi K3
Overall Score77.750.0
Leaderboard Rank#3#34
ACB76.657.7
AA Intelligence Index56.043.8
AutomationBench-AA71.8—
RWT—8.0
Coding Agent Index59.341.4
HLE64.543.5
GPQA95.693.5
SWE-Pro81.3—
SWE-Atlas64.259.9
Terminal-Bench 4.063.612.6
DeepSWE71.068.5
GDPval-AA1837.81668.0
MCP Atlas—84.2
Finance Agent v2.167.360.0
CharXiv—84.8
MMMU-Pro—81.6
Input Price (per 1M tokens)$2.00$3.00
Output Price (per 1M tokens)$10.0$15.0
Context Window1M1M
Benchmarks Published1313

Claude Sonnet 5.5 vs Kimi K3 head-to-head charts

Claude Sonnet 5.5 leads 10 and Kimi K3 leads 0 of 10 shared benchmarks. Claude Sonnet 5.5 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Sonnet 5.5Kimi K3
Overall
77.7Claude Sonnet 5.5
50.0Kimi K3
ACB
76.6Claude Sonnet 5.5
57.7Kimi K3
AA Intelligence Index
56.0Claude Sonnet 5.5
43.8Kimi K3
Coding Agent Index
59.3Claude Sonnet 5.5
41.4Kimi K3
HLE
64.5Claude Sonnet 5.5
43.5Kimi K3
GPQA
95.6Claude Sonnet 5.5
93.5Kimi K3
SWE-Atlas
64.2Claude Sonnet 5.5
59.9Kimi K3
Terminal-Bench 4.0
63.6Claude Sonnet 5.5
12.6Kimi K3
DeepSWE
71.0Claude Sonnet 5.5
68.5Kimi K3
GDPval-AA
1837.8Claude Sonnet 5.5
1668.0Kimi K3
Finance Agent v2.1
67.3Claude Sonnet 5.5
60.0Kimi K3
Claude Sonnet 5.5
Input$2.00
Output$10.0
Workload$4.00
Context1M
Kimi K3
Input$3.00
Output$15.0
Workload$6.00
Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More Claude Sonnet 5.5 and Kimi K3 comparisons

Explore how Claude Sonnet 5.5 and Kimi K3 stack up against other top-ranked LLMs.

Claude Fable 5.2 vs Claude Sonnet 5.5Claude Fable 5.2 vs Kimi K3Claude Opus 5.5 vs Claude Sonnet 5.5Claude Opus 5.5 vs Kimi K3Claude Sonnet 5.5 vs Claude Fable 5.1Claude Fable 5.1 vs Kimi K3Claude Sonnet 5.5 vs Gemini 4 CarbonGemini 4 Carbon vs Kimi K3Claude Sonnet 5.5 vs Gemini 4 ArgonGemini 4 Argon vs Kimi K3

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.