GPT-5.5 vs MiMo-V2-Pro: Specs & Benchmark Comparison
GPT-5.5 is developed by OpenAI, while MiMo-V2-Pro comes from Xiaomi. MiMo-V2-Pro was released in March 2026, and GPT-5.5 followed a month later in April 2026.
The two models share 2 published benchmarks. GPT-5.5 leads on 2 of them. The widest gaps are on Terminal-Bench 2.0, where GPT-5.5 scores 82.7% against 57.1%; Tau2 Telecom, where GPT-5.5 scores 98.0% against 96.8%. Averaged across everything we track, GPT-5.5 sits at 66.4% and MiMo-V2-Pro at 76.1%.
GPT-5.5 is available through an API at $5 per million input tokens with a 1M-token context window. We do not track a hosted API for MiMo-V2-Pro, so pricing and context cannot be compared directly.
| Characteristic | GPT-5.5 | MiMo-V2-Pro |
|---|---|---|
| Company | OpenAI | Xiaomi |
| Release Date | April 23, 2026 | March 18, 2026 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 1.1M | — |
| Context (output) | 128K | — |
| Input Price / 1M | $5.00 | — |
| Output Price / 1M | $30.00 | — |
| Average Score | 66.4% | 76.1% |
| Benchmarks | ||
| Terminal-Bench 2.0 | 82.7% | 57.1% |
| Tau2 Telecom | 98.0% | 96.8% |
Visual Benchmark Comparison
Verdict
GPT-5.5 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: GPT-5.5 — 0.7, MiMo-V2-Pro — 0.8.
GPT-5.5 is newer: released 4/23/2026 vs 3/18/2026.
More About These Models
Frequently Asked Questions
Which is better for coding — GPT-5.5 or MiMo-V2-Pro?
Which model is cheaper — GPT-5.5 or MiMo-V2-Pro?
Which has a larger context window — GPT-5.5 or MiMo-V2-Pro?
The GPT-5.5 and MiMo-V2-Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.5 or MiMo-V2-Pro page. See also the complete list of AI model comparisons.