Last refreshed 2026-10-29. Next refresh: weekly.
Why use d1-ultra on OpenRouter?
OpenRouter offers d1-ultra with pay-as-you-go pricing at $0.04/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare d1-ultra across 3 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: liquid/d1-ultraliquid/d1-ultraRequest example
liquid/d1-ultra.Gotchas
- Use provider model ID "liquid/d1-ultra", not the LLMReference slug "d1-ultra".
Compare d1-ultra Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Liquid AI | $0.04 | Free |
| Vercel AI Gateway | $0.04 | Free |
| OpenRouter | $0.04 | Free |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.04 |
| Output tokens | Free |
Capabilities
About d1-ultra
d1-ultra is a decision model from Liquid AI, released October 15, 2026 on the Liquid API. It reads text, images or both plus typed questions (noul yes/no, Choice, Score) in a single forward pass and returns probabilities without generating output tokens. Liquid states it is built on a larger open-weight base than d1 and targets tasks such as visual defect inspection and checking damage claims against photos. Billed on input tokens only. API-only; no public weights.