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Side-by-side comparison of Gemini 3 Flash and GPT-5.3. Gemini 3 Flash scores 42 on quality benchmarks at $0.38/1M tokens. GPT-5.3 scores 70 at $12.00/1M tokens.
Gemini 3 Flash is the more affordable option and costs less per token. GPT-5.3 leads in quality benchmarks. For budget-conscious users, go with Gemini 3 Flash. For maximum quality, choose GPT-5.3.
| Gemini 3 Flash | GPT-5.3 | |
|---|---|---|
| Provider | OpenAI | |
| Tier | Budget | Frontier |
| Quality Score | 42 | 70 |
| Input Price | $0.07/1M | $2.00/1M |
| Output Price | $0.30/1M | $10.00/1M |
| Speed | 200 tok/s | 80 tok/s |
| Context Window | 1.0M | 400K |
| Max Output | 66K | 64K |
| Reasoning | No | Yes |
| Vision | Yes | Yes |
| Task | Gemini 3 Flash | GPT-5.3 | Savings |
|---|---|---|---|
| Coding | $0.74 | $23.40 | Gemini 3 Flash saves $22.66 |
| Writing | $0.20 | $6.24 | Gemini 3 Flash saves $6.04 |
| Analysis | $0.41 | $13.00 | Gemini 3 Flash saves $12.59 |
| Research | $0.33 | $10.40 | Gemini 3 Flash saves $10.07 |
| $0.07 | $2.08 | Gemini 3 Flash saves $2.01 | |
| Summarization | $0.13 | $4.16 | Gemini 3 Flash saves $4.03 |