Dated comparison: 3 September 2026
| Metric | Gemini 3.8 Flash | Grok 4.6 |
|---|---|---|
| AA Intelligence Index | 59 | 59 |
| Output speed | ~305 tok/s | ~55 tok/s |
| Standard input / 1M | $0.75 | Higher |
| Standard output / 1M | $3.75 | Higher |
| Modalities | Text, image, audio, video, PDF in | Text in |
| Time to first token | 13.39 s | Lower |
| Weights | Closed | Closed |
How to choose
Pick Gemini 3.8 Flash for higher output throughput, multimodal input and lower per-token cost at the same index score. Pick Grok 4.6 if first-token latency dominates your workload and the 13.3-second Gemini wait is disqualifying.
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These figures are transcribed from the 3 September 2026 research snapshot. The AA Intelligence Index is a composite, not a per-benchmark score.
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.
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