Is OpenAI: GPT-5.3-Codex or MoonshotAI: Kimi K2.6 cheaper?

MoonshotAI: Kimi K2.6 is cheaper on output tokens ($3.50 vs $14.00 per 1M).

Which has the larger context window, OpenAI: GPT-5.3-Codex or MoonshotAI: Kimi K2.6?

OpenAI: GPT-5.3-Codex has the larger context window (400K tokens).

OpenAI: GPT-5.3-Codex vs MoonshotAI: Kimi K2.6

MoonshotAI: Kimi K2.6 is cheaper on output tokens, while OpenAI: GPT-5.3-Codex offers a larger context window. Choose OpenAI: GPT-5.3-Codex or MoonshotAI: Kimi K2.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	OpenAI: GPT-5.3-Codex	MoonshotAI: Kimi K2.6
Provider	Kilo Gateway	Kilo Gateway
Input / 1M tokens	$1.75	$0.75
Output / 1M tokens	$14.00	$3.50
Context window	400K	262K
Parameters	—	1T
Open weights	No	Yes
Released	Feb 2026	Apr 2026

OpenAI: GPT-5.3-Codex details →MoonshotAI: Kimi K2.6 details →

FAQ

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