Gemini 4 Carbon vs GPT-5
Price, context window & benchmark comparison
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Verdict: GPT-5 is 14% cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix. Gemini 4 Carbon has the larger context window (1M vs 400K).
| Gemini 4 Carbon | GPT-5 | |
|---|---|---|
| Input price / 1M | $2.00 | $1.25 |
| Output price / 1M | $10.00 | $10.00 |
| Blended price (3:1) | $4.00 | $3.44 |
| Cached input / 1M | $0.10 | $0.13 |
| Context window | 1M | 400K |
| Max output | 944K | 128K |
| Intelligence index | 60 | — |
| Coding index | — | 37.8 |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-11-10 | 2025-08-07 |
| Retirement | — | 2026-12-11 |
Cost calculator
FAQ
Which is cheaper, Gemini 4 Carbon or GPT-5?
GPT-5 is 14% cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix.
Gemini 4 Carbon vs GPT-5: which has a bigger context window?
Gemini 4 Carbon: 1,048,576 tokens. GPT-5: 400,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 4 Carbon ≈ $9,000, GPT-5 ≈ $7,500.
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