U2
by Unisound
U2 is a model from Unisound, released on June 5, 2026. API pricing is $0.15 per 1M input tokens and $0.3 per 1M output tokens. It ranks #112 of 220 models by Intelligence Score with a score of 23.3.
Unisound has launched its next-generation flagship model, Unisound U2, built around three core advances: high intelligence density, high token efficiency, and a native agent architecture. Through refined data curation and dense semantic representation, U2 delivers strong performance with a smaller model footprint, increasing information yield per token while reducing inference cost without sacrificing capability versus larger models. Powered by a novel native reasoning-path distillation framework, U2 can autonomously decompose, execute, verify, and optimize tasks in a closed-loop workflow, making it an ideal foundation model for next-generation AI agents.
Key specs
| Provider | Unisound |
|---|---|
| Release date | 2026-06-05 |
| License | proprietary |
| Input price | $0.15 / 1M tokens |
| Output price | $0.3 / 1M tokens |
| Intelligence Score | 23.3 |
| Coding index | 20.6 |
Quick answers
How much does U2 cost?
U2 costs $0.15 per 1M input tokens and $0.3 per 1M output tokens through the API.
Is U2 open source?
No. U2 is a proprietary model from Unisound (proprietary license).
When was U2 released?
Unisound released U2 on June 5, 2026.
How does U2 compare to Claude Opus 5.5 (Reasoning)?
U2 scores 23.3 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1. Input pricing is $0.15 vs $4 per 1M tokens.