Gemini 4 Carbon vs GPT Audio
Price, context window & benchmark comparison
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Verdict: Gemini 4 Carbon is 9% cheaper than GPT Audio on a typical 3:1 input/output mix. Gemini 4 Carbon has the larger context window (1M vs 128K).
| Gemini 4 Carbon | GPT Audio | |
|---|---|---|
| Input price / 1M | $2.00 | $2.50 |
| Output price / 1M | $10.00 | $10.00 |
| Blended price (3:1) | $4.00 | $4.38 |
| Cached input / 1M | $0.10 | — |
| Context window | 1M | 128K |
| Max output | 944K | 16K |
| Intelligence index | 60 | — |
| Coding index | — | — |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| Released | 2026-11-10 | 2026-01-19 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 4 Carbon or GPT Audio?
Gemini 4 Carbon is 9% cheaper than GPT Audio on a typical 3:1 input/output mix.
Gemini 4 Carbon vs GPT Audio: which has a bigger context window?
Gemini 4 Carbon: 1,048,576 tokens. GPT Audio: 128,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 4 Carbon ≈ $9,000, GPT Audio ≈ $10,000.
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