Is GPT-5.1 Codex Mini or Kimi K2.6 cheaper?

GPT-5.1 Codex Mini is cheaper on output tokens ($2.00 vs $4.00 per 1M).

Which has the larger context window, GPT-5.1 Codex Mini or Kimi K2.6?

GPT-5.1 Codex Mini has the larger context window (400K tokens).

GPT-5.1 Codex Mini vs Kimi K2.6

GPT-5.1 Codex Mini is cheaper on output tokens, while GPT-5.1 Codex Mini offers a larger context window. Choose GPT-5.1 Codex Mini or Kimi K2.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.1 Codex Mini	Kimi K2.6
Provider	OpenCode Zen	OpenCode Zen
Input / 1M tokens	$0.25	$0.95
Output / 1M tokens	$2.00	$4.00
Context window	400K	262K
Parameters	—	1T
Open weights	No	Yes
Released	Nov 2025	Apr 2026

GPT-5.1 Codex Mini details →Kimi K2.6 details →

FAQ

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