GPT-3.5 Turbo (older v0613) vs GPT-6.1 Terra
Price, context window & benchmark comparison
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Verdict: GPT-3.5 Turbo (older v0613) is 38% cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix. GPT-6.1 Terra has the larger context window (1.1M vs 4K).
| GPT-3.5 Turbo (older v0613) | GPT-6.1 Terra | |
|---|---|---|
| Input price / 1M | $1.00 | $1.00 |
| Output price / 1M | $2.00 | $5.00 |
| Blended price (3:1) | $1.25 | $2.00 |
| Cached input / 1M | — | $0.05 |
| Context window | 4K | 1.1M |
| Max output | 4K | 128K |
| Intelligence index | — | 51.3 |
| Coding index | — | — |
| Providers | — | 7 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| Released | 2024-01-25 | 2026-10-26 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-3.5 Turbo (older v0613) or GPT-6.1 Terra?
GPT-3.5 Turbo (older v0613) is 38% cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix.
GPT-3.5 Turbo (older v0613) vs GPT-6.1 Terra: which has a bigger context window?
GPT-3.5 Turbo (older v0613): 4,095 tokens. GPT-6.1 Terra: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-3.5 Turbo (older v0613) ≈ $3,000, GPT-6.1 Terra ≈ $4,500.
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