d1-ultra d1-ultra is Liquid AI's most powerful decision model. Multimodal and supporting 44 languages, it ranks #1 on the Artificial Analysis Decision Index (score 65) and leads all eight categories in a 112-evaluation suite. It delivers reliable calibrated probabilities so high-confidence decisions can be automated, with strong performance on expert, visual, and multilingual tasks. Available via the Liquid API at $0.042 per million input tokens and no output-token charge.
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“Our team’s been cooking 🧑🍳 D1-ultra is live, and the best decision model we’ve built. Beats Jev 1.14 across the board, #1 on the AA Decision Index, multimodal, 44 languages. Available now on the Liquid API.”
“#1 on the Artificial Analysis Decision Index at 65, and $0.042 per million input tokens with no output billing. Hard to find a cleaner launch combo than leading the board and being cheap enough to put a threshold on every decision in the stack.”
“After d1, we didn't want to chase incremental improvements. We went back to the drawing board and redesigned it from scratch: data, model, evals, serving, all backed by ablations. The result is d1-ultra, the world's best decision model! 🥳”
“Today we’re introducing d1-ultra, our strongest decision model to date 🫡 We made d1 much stronger across the board: real-world decisions, expert tasks, images, knowing when it doesn’t know. I really hope you will enjoy using it !”






