Gemini 3.5 Flash vs GPT-5
Side-by-side comparison of pricing, benchmark snapshots, source status, context window, and product fit.
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Cost comparison
| Model | Input price | Output price | Context window | Source status |
|---|---|---|---|---|
| Gemini 3.5 Flash | $0.075 / 1M tokens | $0.3 / 1M tokens | 1M tokens | needs official confirmation |
| GPT-5 (API) | $1.25 / 1M tokens | $10 / 1M tokens | 400K tokens | needs official confirmation |
Fit comparison
| Best for | High-volume cost checks, Long-context planning, Pricing watchlists | Reasoning-heavy apps, Code review, Agent workflows |
|---|---|---|
| Strength | Cost-sensitive, long-context planning pages. | Reasoning-heavy, coding, and agent workflows. |
| Trade-off | Official confirmation required before production decisions. | Higher estimated output cost in this watchlist dataset. |