Gemini 4 Argon vs GPT-5.6 Terra
Price, context window & benchmark comparison
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Verdict: Gemini 4 Argon is 11% cheaper than GPT-5.6 Terra on a typical 3:1 input/output mix. Gemini 4 Argon scores higher on the Artificial Analysis Intelligence Index (50.4 vs 32.3). GPT-5.6 Terra has the larger context window (1.1M vs 1M).
| Gemini 4 Argon | GPT-5.6 Terra | |
|---|---|---|
| Input price / 1M | $2.00 | $2.00 |
| Output price / 1M | $10.00 | $12.00 |
| Blended price (3:1) | $4.00 | $4.50 |
| Cached input / 1M | $0.10 | $0.20 |
| Context window | 1M | 1.1M |
| Max output | 944K | 128K |
| Intelligence index | 50.4 | 32.3 |
| Coding index | — | 76.7 |
| Providers | 6 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-13 | 2026-07-09 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 4 Argon or GPT-5.6 Terra?
Gemini 4 Argon is 11% cheaper than GPT-5.6 Terra on a typical 3:1 input/output mix.
Gemini 4 Argon vs GPT-5.6 Terra: which has a bigger context window?
Gemini 4 Argon: 1,048,576 tokens. GPT-5.6 Terra: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 4 Argon ≈ $9,000, GPT-5.6 Terra ≈ $10,000.
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