Is Kimi K2.6 Fast or GPT OSS 20B cheaper?

GPT OSS 20B is cheaper on output tokens ($0.30 vs $8.00 per 1M).

Which has the larger context window, Kimi K2.6 Fast or GPT OSS 20B?

Kimi K2.6 Fast has the larger context window (262K tokens).

Kimi K2.6 Fast vs GPT OSS 20B

GPT OSS 20B is cheaper on output tokens, while Kimi K2.6 Fast offers a larger context window. Choose Kimi K2.6 Fast or GPT OSS 20B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Kimi K2.6 Fast	GPT OSS 20B
Provider	Fireworks AI	Fireworks AI
Input / 1M tokens	$2.00	$0.07
Output / 1M tokens	$8.00	$0.30
Context window	262K	131K
Parameters	—	21B
Open weights	Yes	Yes
Released	Apr 2026	Aug 2025

Kimi K2.6 Fast details →GPT OSS 20B details →

FAQ

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