Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Gemini 2.5 Flash (Non-reasoning) | Grok 4.3 (Non-reasoning) |
|---|---|---|
| Input ($/M tokens) | $0.3 | $1.25 |
| Output ($/M tokens) | $2.5 | $2.5 |
Data from Artificial Analysis API — 12 benchmarks
Gemini 2.5 Flash (Non-reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.85/M tokens vs $1.56/M for Grok 4.3 (Non-reasoning).
It's a tie — both models win 6 benchmarks each across 12 evaluated categories. See the detailed benchmark chart above for per-category results.
Gemini 2.5 Flash (Non-reasoning) generates tokens faster at 199 tok/s vs 72 tok/s. Gemini 2.5 Flash (Non-reasoning) also has lower time-to-first-token (0.53s vs 0.57s).
Choose based on your priorities: Gemini 2.5 Flash (Non-reasoning) for lower cost, both perform similarly on benchmarks, and Gemini 2.5 Flash (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.