Is Claude Sonnet 4 (latest) or Gemini 3.5 Flash cheaper?

Gemini 3.5 Flash is cheaper on output tokens ($9.00 vs $15.00 per 1M).

Which has the larger context window, Claude Sonnet 4 (latest) or Gemini 3.5 Flash?

Claude Sonnet 4 (latest) has the larger context window (216K tokens).

Claude Sonnet 4 (latest) vs Gemini 3.5 Flash

Gemini 3.5 Flash is cheaper on output tokens, while Claude Sonnet 4 (latest) offers a larger context window. Choose Claude Sonnet 4 (latest) or Gemini 3.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude Sonnet 4 (latest)	Gemini 3.5 Flash
Provider	GitHub Copilot	GitHub Copilot
Input / 1M tokens	$3.00	$1.50
Output / 1M tokens	$15.00	$9.00
Context window	216K	200K
Parameters	—	—
Open weights	No	No
Released	May 2025	May 2026

Claude Sonnet 4 (latest) 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.