GPT-6.1 Terra vs Morph V3 Fast
Price, context window & benchmark comparison
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Verdict: Morph V3 Fast is 2.2× 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 262K).
| GPT-6.1 Terra | Morph V3 Fast | |
|---|---|---|
| Input price / 1M | $1.00 | $0.80 |
| Output price / 1M | $5.00 | $1.20 |
| Blended price (3:1) | $2.00 | $0.90 |
| Cached input / 1M | $0.05 | — |
| Context window | 1.1M | 262K |
| Max output | 128K | 131K |
| Intelligence index | 51.3 | — |
| Coding index | — | — |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| Released | 2026-10-26 | 2025-07-07 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6.1 Terra or Morph V3 Fast?
Morph V3 Fast is 2.2× cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix.
GPT-6.1 Terra vs Morph V3 Fast: which has a bigger context window?
GPT-6.1 Terra: 1,050,000 tokens. Morph V3 Fast: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6.1 Terra ≈ $4,500, Morph V3 Fast ≈ $2,200.
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