Gemini 4 Carbon vs Seed 1.6 Flash
Price, context window & benchmark comparison
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Verdict: Seed 1.6 Flash is 30.5× cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix. Gemini 4 Carbon has the larger context window (1M vs 262K).
| Gemini 4 Carbon | Seed 1.6 Flash | |
|---|---|---|
| Input price / 1M | $2.00 | $0.075 |
| Output price / 1M | $10.00 | $0.30 |
| Blended price (3:1) | $4.00 | $0.13 |
| Cached input / 1M | $0.10 | — |
| Context window | 1M | 262K |
| Max output | 944K | 33K |
| Intelligence index | 60 | — |
| Coding index | — | — |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-11-10 | 2025-12-23 |
| Retirement | — | 2026-11-11 |
Cost calculator
FAQ
Which is cheaper, Gemini 4 Carbon or Seed 1.6 Flash?
Seed 1.6 Flash is 30.5× cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix.
Gemini 4 Carbon vs Seed 1.6 Flash: which has a bigger context window?
Gemini 4 Carbon: 1,048,576 tokens. Seed 1.6 Flash: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 4 Carbon ≈ $9,000, Seed 1.6 Flash ≈ $300.00.
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