GPT-5.4 Pro vs MiMo-V2.6-Pro-UltraSpeed
Price, context window & benchmark comparison
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Verdict: MiMo-V2.6-Pro-UltraSpeed is 12.4× cheaper than GPT-5.4 Pro on a typical 3:1 input/output mix. GPT-5.4 Pro has the larger context window (1.1M vs 1M).
| GPT-5.4 Pro | MiMo-V2.6-Pro-UltraSpeed | |
|---|---|---|
| Input price / 1M | $30.00 | $4.35 |
| Output price / 1M | $180.00 | $8.70 |
| Blended price (3:1) | $67.50 | $5.44 |
| Cached input / 1M | — | $0.036 |
| Context window | 1.1M | 1M |
| Max output | 128K | 131K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-03-05 | 2026-09-21 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-5.4 Pro or MiMo-V2.6-Pro-UltraSpeed?
MiMo-V2.6-Pro-UltraSpeed is 12.4× cheaper than GPT-5.4 Pro on a typical 3:1 input/output mix.
GPT-5.4 Pro vs MiMo-V2.6-Pro-UltraSpeed: which has a bigger context window?
GPT-5.4 Pro: 1,050,000 tokens. MiMo-V2.6-Pro-UltraSpeed: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-5.4 Pro ≈ $150,000, MiMo-V2.6-Pro-UltraSpeed ≈ $13,050.
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