AL
Jamba 1.5 Large
AI21 Labs
Unisound model product
U2
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.
Updated Aug 12, 2026. Default version: U2
LLMBoard scoreN/ANot scored
CoverageN/ANot scored
Context windowN/ATokens
Official input priceN/AOfficial price unavailable
U2 Specifications
Technical details for the model's default version.
- Version
- U2
- Released
- Jun 5, 2026
- Knowledge cutoff
- Jan 31, 2026
- Parameters
- 266B
- Context window
- N/A
- Max output
- N/A
- Inputs
- image, text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
U2 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
No capability profile
No version of this model currently has enough benchmark coverage for a score.
U2 Benchmark Results
Benchmark scores for the scored version.
No benchmark results
No benchmark result is linked to the scored version.
U2 Arena Results
Preference and agent-evaluation results for the default version.
No Arena results
The default version does not have a matching Arena result yet.
U2 Runtime Performance
Provider-specific output speed and catalog latency for U2. Runtime does not affect the capability score.
No runtime data
Browse runtime rankingsNo provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
U2 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- N/A
- Official provider
- N/A
- Lowest third-party
- N/A
- Tracked offerings
- 0
No provider prices
The default version has no current input or output token prices.
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
U2 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
| U2 | N/A | 266B | N/A | N/A | No | Proprietary |
What is U2?
Key information about U2 and its available data.
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.
Data as of 2026-08-11.
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FAQ
Common questions about U2.
When was U2 released?
U2's default version was released on Jun 5, 2026.
How much does U2 cost?
No official standard PAYG price is currently available for U2.
Who created U2?
U2 was created by Unisound.
What is the context window for U2?
A context window is not available for the default version.
Is U2 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer U2?
No provider offering is currently linked to the default version.
What models should I compare U2 with?
No nearby ranked alternatives are currently available.