Claude Opus 4.6 vs Kimi K2.6

Pick Claude Opus 4.6 if you want the stronger benchmark profile. Kimi K2.6 only becomes the better choice if coding is the priority or you want the cheaper token bill.

Claude Opus 4.6 has the cleaner provisional overall profile here, landing at 87 versus 84. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

Claude Opus 4.6's sharpest advantage is in knowledge, where it averages 76.2 against 53.8. The single biggest benchmark swing on the page is HLE, 53% to 34.7%. Kimi K2.6 does hit back in coding, so the answer changes if that is the part of the workload you care about most.

Claude Opus 4.6 is also the more expensive model on tokens at $5.00 input / $25.00 output per 1M tokens, versus $0.95 input / $4.00 output per 1M tokens for Kimi K2.6. That is roughly 6.3x on output cost alone. Kimi K2.6 is the reasoning model in the pair, while Claude Opus 4.6 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Claude Opus 4.6 gives you the larger context window at 1M, compared with 256K for Kimi K2.6.