Gemini 4 Carbon vs GPT-3.5 Turbo
Price, context window & benchmark comparison
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Verdict: GPT-3.5 Turbo is 5.3× cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix. Gemini 4 Carbon scores higher on the Artificial Analysis Intelligence Index (60 vs 5.5). Gemini 4 Carbon has the larger context window (1M vs 16K).
| Gemini 4 Carbon | GPT-3.5 Turbo | |
|---|---|---|
| Input price / 1M | $2.00 | $0.50 |
| Output price / 1M | $10.00 | $1.50 |
| Blended price (3:1) | $4.00 | $0.75 |
| Cached input / 1M | $0.10 | — |
| Context window | 1M | 16K |
| Max output | 944K | 4K |
| Intelligence index | 60 | 5.5 |
| Coding index | — | 10.7 |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| Released | 2026-11-10 | 2023-05-28 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 4 Carbon or GPT-3.5 Turbo?
GPT-3.5 Turbo is 5.3× cheaper than Gemini 4 Carbon on a typical 3:1 input/output mix.
Gemini 4 Carbon vs GPT-3.5 Turbo: which has a bigger context window?
Gemini 4 Carbon: 1,048,576 tokens. GPT-3.5 Turbo: 16,385 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 4 Carbon ≈ $9,000, GPT-3.5 Turbo ≈ $1,750.
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