Is Gemini 2.5 Flash or Claude Opus 4.5 cheaper?

Gemini 2.5 Flash is cheaper on output tokens ($2.50 vs $25.00 per 1M).

Which has the larger context window, Gemini 2.5 Flash or Claude Opus 4.5?

Gemini 2.5 Flash has the larger context window (1M tokens).

Gemini 2.5 Flash vs Claude Opus 4.5

Gemini 2.5 Flash is cheaper on output tokens, while Gemini 2.5 Flash offers a larger context window. Choose Gemini 2.5 Flash or Claude Opus 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 2.5 Flash	Claude Opus 4.5
Provider	Perplexity Agent	Perplexity Agent
Input / 1M tokens	$0.30	$5.00
Output / 1M tokens	$2.50	$25.00
Context window	1M	200K
Parameters	—	—
Open weights	No	No
Released	Mar 2025	Nov 2025

Gemini 2.5 Flash details →Claude Opus 4.5 details →

FAQ

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