U2: Benchmarks, Pricing & Context Window
U2 is a language model from Unisound, released in June 2026.
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
U2 pricing
Providers
U2 starts at $0.150 per million input tokens and $0.300 per million output tokens via Unisound. Reused prompt prefixes cost $0.0030 per million cached input tokens.
| Provider | Input $/M | Cached input $/M | Output $/M | Context in / out | TTFT p95 s | Output p5 c/s | Modalities in / out |
|---|---|---|---|---|---|---|---|
 Unisound | $0.150 | $0.0030 | $0.300 | —/— | — | — | / |
Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests.
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U2 latency
U2 time to first token, sustained output throughput, and failed-request rate from live model usage over the trailing 7 days.
U2 examples
Recent arena outputs from U2, picked from the highest-ranked matchups.
U2 license
U2 is a proprietary model available under its provider's product and API terms, has 266.0B parameters, has a knowledge cutoff of January 2026.
- License
- Proprietary
- Hosted access
- Parameters
- 266.0B
- Knowledge cutoff
- January 2026
Proprietary license - usage restrictions apply
U2 resources
Official sources for U2: provider documentation.
FAQ
Common questions about U2.