Is Claude Opus 4.8 or Gemini 3.5 Flash cheaper?

Gemini 3.5 Flash is cheaper on output tokens ($9.00 vs $25.00 per 1M).

Which has the larger context window, Claude Opus 4.8 or Gemini 3.5 Flash?

Both models offer a similar context window.

Claude Opus 4.8 vs Gemini 3.5 Flash

Gemini 3.5 Flash is cheaper on output tokens. Choose Claude Opus 4.8 or Gemini 3.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude Opus 4.8	Gemini 3.5 Flash
Provider	GitHub Copilot	GitHub Copilot
Input / 1M tokens	$5.00	$1.50
Output / 1M tokens	$25.00	$9.00
Context window	200K	200K
Parameters	—	—
Open weights	No	No
Released	May 2026	May 2026

Claude Opus 4.8 details →Gemini 3.5 Flash details →

FAQ

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