How do Kimi K3 and Grok 4.3 compare on coding benchmarks?

The comparison table shows SWE-bench, SWE-Pro, SWE-Atlas, Terminal-Bench, DeepSWE, and coding agent index scores for both Kimi K3 and Grok 4.3 when publicly disclosed.

LLM Comparison

Kimi K3 vs Grok 4.3: benchmark scores, pricing & comparison.

Q: Which is better: Kimi K3 or Grok 4.3?

AskClash compares Kimi K3 and Grok 4.3 side by side across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, and context window so you can see which model wins on each benchmark.

Side-by-side Kimi K3 vs Grok 4.3 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.

Open live leaderboard Kimi K3 model page Grok 4.3 model page

Rank #5 vs #33AskClash overall scores 76.4 vs 43.6.

Pricing $3.00/$15.0 vs $1.25/$2.50Input and output token prices per 1M tokens when published.

Open Weight vs ProprietaryMoonshot AI vs xAI.

Kimi K3 vs Grok 4.3 benchmark comparison

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

Metric	Kimi K3	Grok 4.3
Overall Score	76.4	43.6
Leaderboard Rank	#5	#33
RWT	8.0	6.0
HLE	43.5	35.0
GPQA	93.5	90.1
IFEval	—	81.3
Terminal-Bench	88.3	—
DeepSWE	68.5	—
MCP Atlas	84.2	—
Finance Agent	54.4	37.7
CharXiv	84.8	—
MMMU-Pro	81.6	78.1
Tau2	—	97.7
Input Price (per 1M tokens)	$3.00	$1.25
Output Price (per 1M tokens)	$15.0	$2.50
Context Window	1M	1M
Benchmarks Published	11	6

Kimi K3 vs Grok 4.3 head-to-head charts

Kimi K3 leads 6 and Grok 4.3 leads 0 of 6 shared benchmarks. Grok 4.3 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Kimi K3Grok 4.3

Overall

76.4Kimi K3

43.6Grok 4.3

RWT

8.0Kimi K3

6.0Grok 4.3

HLE

43.5Kimi K3

35.0Grok 4.3

GPQA

93.5Kimi K3

90.1Grok 4.3

Finance Agent

54.4Kimi K3

37.7Grok 4.3

MMMU-Pro

81.6Kimi K3

78.1Grok 4.3

Kimi K3

Input$3.00

Output$15.0

Workload$6.00

Context1M

Grok 4.3

Input$1.25

Output$2.50

Workload$1.75

Context1M

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

More Kimi K3 and Grok 4.3 comparisons

Explore how Kimi K3 and Grok 4.3 stack up against other top-ranked LLMs.

Claude Opus 5 vs Kimi K3 Claude Opus 5 vs Grok 4.3 Claude Fable 5 vs Kimi K3 Claude Fable 5 vs Grok 4.3 GPT-5.6 Sol vs Kimi K3 GPT-5.6 Sol vs Grok 4.3 Claude Opus 4.8 vs Kimi K3 Claude Opus 4.8 vs Grok 4.3 Kimi K3 vs Claude Opus 4.7 Claude Opus 4.7 vs Grok 4.3

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.