D1 Ultra
Oct 2026
D1 UltraCompare inon
D1 Ultra measured on 8 of 12 Decision models benchmarks8
BenchmarkByScoreRank
No benchmark matches
Alternatives?
ModelScoreCostPer taskWhat changes
TBetterJev 1.13+39%—$0.042 / —
OpenDecider v1.1 27Bsame——Context: 33K → 8KTBetterJev 1.14+26%—$0.042 / —OpenDecider v1.2same—$0.02 / —OpenDecider Flash v1.2-19%—$0.01 / —ModelScoreCostPer taskWhat changes
Nothing here yet.
ModelScoreCostPer taskWhat changes
Decider v1.1 27BOpensame——Context: 33K → 8KDecider v1.2Opensame—$0.02 / —Decider Flash v1.2Open-19%—$0.01 / —CClefOpen-26%—$0.24 / —CClef FlashOpen-31%—$0.038 / —Context: 33K → 25KModelScoreCostPer taskWhat changes
D1-23%—$0.02 / —D1 3BOpenn/a——D1 Omni 600MOpenn/a——Context: 33K → 16KAll Liquid AI models →Benchmarks
in Decision modelsAA Decision Index v1.065.2#1
FAQ
How much does D1 Ultra cost?›
$0.042 per 1M input tokens and — per 1M output tokens.
Is D1 Ultra free to use?›
There is no free API; the cheapest paid price is $0.042 per 1M input tokens.
How good is D1 Ultra, and what is it best at?›
#1 of 15 in Decision models.
Is D1 Ultra better than Decider v1.1 27B?›
On AA Decision · Humanity's Last Exam text multiple-choice accuracy, D1 Ultra scores 15 vs 15.4 — about the same.
How can I use D1 Ultra?›
Through the API of OpenRouter.
What is the context window of D1 Ultra?›
33K tokens.
When was D1 Ultra released? Is there a newer version?›
Released 2026-10-15. It is the current version in its line.
Is D1 Ultra open source?›
No, D1 Ultra is a closed model available through an API. The closest open-weights option here is Decider v1.1 27B.
Can D1 Ultra read images?›
It accepts text and images as input.
What is D1 Ultra?›
D1 Ultra is a closed language model from Liquid AI, released Oct 2026.
What are the best alternatives to D1 Ultra?›
Jev 1.13 (better), Decider v1.1 27B (open weights).