Moonshot AI (Kimi) kimi-k2.5 VS xAI Grok 4.5
⚖️Our Take
If your budget allows, Grok 4.5 is the superior choice here, offering a clear benchmark advantage while carrying only a moderate price premium (2.5x). We recommend choosing kimi-k2.5 only if you need to optimize costs for very high-volume pipelines.
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Benchmarks & Scores
Coding (swe-bench-pro)
50.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
87.6%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)2.5x cheaper
$1.20Input: $0.60 | Output: $3.00Context Window
262.14k tokensBenchmarks & Scores
Coding (swe-bench-pro)Winner (+14.0%)
64.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)Winner (+5.4%)
93%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$3.00Input: $2.00 | Output: $6.00Context WindowLarger
500k tokensFrequently Asked Questions about kimi-k2.5 vs Grok 4.5 comparison
kimi-k2.5 is cheaper than Grok 4.5. kimi-k2.5 has a blended cost of $1.20/1M tokens, which is about 2.5x cheaper than Grok 4.5 at $3.00/1M tokens.
Grok 4.5 is better for coding tasks on this benchmark. It scores 64.7% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to kimi-k2.5 which scores 50.7%.
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