Is OpenAI GPT OSS 120B or Claude Fable 5 cheaper?

OpenAI GPT OSS 120B is cheaper on output tokens ($0.30 vs $60.00 per 1M).

Which has the larger context window, OpenAI GPT OSS 120B or Claude Fable 5?

Claude Fable 5 has the larger context window (1M tokens).

OpenAI GPT OSS 120B vs Claude Fable 5

OpenAI GPT OSS 120B is cheaper on output tokens, while Claude Fable 5 offers a larger context window. Choose OpenAI GPT OSS 120B or Claude Fable 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	OpenAI GPT OSS 120B	Claude Fable 5
Provider	Venice AI	Venice AI
Input / 1M tokens	$0.07	$12.00
Output / 1M tokens	$0.30	$60.00
Context window	128K	1M
Parameters	117B	—
Open weights	Yes	No
Released	Nov 2025	Jun 2026

OpenAI GPT OSS 120B details →Claude Fable 5 details →

FAQ

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