Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Kimi K2.5 (Reasoning) is clearly ahead on the aggregate, 71 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Composer 2 gives you the larger context window at 200K, compared with 128K for Kimi K2.5 (Reasoning).
Pick Kimi K2.5 (Reasoning) if you want the stronger benchmark profile. Composer 2 only becomes the better choice if agentic is the priority or you need the larger 200K context window.
Composer 2
61.7
Kimi K2.5 (Reasoning)
57.6
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Kimi K2.5 (Reasoning) is ahead overall, 71 to 62. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 61.7% and 50.8%.
Composer 2 has the edge for agentic tasks in this comparison, averaging 61.7 versus 57.6. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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