Gemini 3.5 Flash vs Claude Opus 5
Gemini 3.5 Flash is cheaper on output tokens, while Gemini 3.5 Flash offers a larger context window. Choose Gemini 3.5 Flash or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 3.5 Flash | Claude Opus 5 |
|---|---|---|
| Provider | Abacus | Abacus |
| Input / 1M tokens | $1.50 | $5.00 |
| Output / 1M tokens | $9.00 | $25.00 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | May 2026 | Jul 2026 |
FAQ
Is Gemini 3.5 Flash or Claude Opus 5 cheaper?
Gemini 3.5 Flash is cheaper on output tokens ($9.00 vs $25.00 per 1M).
Which has the larger context window, Gemini 3.5 Flash or Claude Opus 5?
Gemini 3.5 Flash has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.