Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.1
--
Kimi K2.5
68
Verified leaderboard positions: GPT-5.1 unranked · Kimi K2.5 #9
Benchmark data for GPT-5.1 and Kimi K2.5 is coming soon on BenchLM.
GPT-5.1
Kimi K2.5
$1.5 / $6
$0.5 / $2.8
111 t/s
45 t/s
57.47s
2.38s
200K
256K
Benchmark data for GPT-5.1 and Kimi K2.5 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.1 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.1 is priced at $1.50 input / $6.00 output per 1M tokens, versus $0.50 input / $2.80 output per 1M tokens for Kimi K2.5. Kimi K2.5 has the larger context window at 256K, compared with 200K for GPT-5.1.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
GPT-5.1: $1.50 input / $6.00 output per 1M tokens Kimi K2.5: $0.50 input / $2.80 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Estimates at 50,000 req/day · 1000 tokens/req average.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.