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kimi-k2-0905-preview vs Fusion

Fusion is cheaper on output tokens, while Fusion offers a larger context window. Choose kimi-k2-0905-preview or Fusion based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Speckimi-k2-0905-previewFusion
Provider302.AIOpenRouter
Input / 1M tokens$0.63$-1,000,000.00
Output / 1M tokens$2.51$-1,000,000.00
Context window262K1M
Parameters——
Open weightsYes—
ReleasedSep 2025—
SWE-bench Verified score71.2—

FAQ

Is kimi-k2-0905-preview or Fusion cheaper?

Fusion is cheaper on output tokens ($-1,000,000.00 vs $2.51 per 1M).

Which has the larger context window, kimi-k2-0905-preview or Fusion?

Fusion has the larger context window (1M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.