Dated comparison: 3 September 2026
| Metric | Gemini 3.8 Flash | Claude Sonnet 5 |
|---|---|---|
| AA Intelligence Index | 59 | Lower |
| Terminal-Bench 2.1 | 89.4% | 80.4% |
| DeepSWE v1.1 | 73.7% | 53.8% |
| HLE-Verified | 54.9% | 31.0% |
| Output speed | ~305 tok/s | Lower |
| Modalities | Text, image, audio, video, PDF in | Text in |
| Weights | Closed | Closed |
How to choose
Google already published this comparison and Gemini 3.8 Flash wins on every shared row. Treat the page as a confirmation rather than a recommendation: verify on your own workload before deciding.
Ready to test the workflow?
Create account & add creditsComparison limits
These figures are transcribed from the 3 September 2026 research snapshot. Sonnet 5's per-token prices and the full benchmark overlap should be verified on the Sonnet 5 page.
Frequently asked questions
How current is this information?
This page uses the verified research snapshot dated 3 September 2026. Verify current access, pricing and benchmark figures before a production decision.
Put Gemini 3.8 Flash to work
Fund a controlled evaluation, send a reference frame or document, and measure quality and cost on your own workload.