How much does D1 Ultra cost?

On the Respan gateway, D1 Ultra costs $0.04 per 1M input tokens and $0.00 per 1M output tokens on OpenRouter, after gateway discounts.

Which providers serve D1 Ultra on Respan?

D1 Ultra is served by OpenRouter.

What is D1 Ultra's context window?

D1 Ultra accepts up to 33K tokens of context.

How do I use D1 Ultra with the Respan gateway?

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "d1-ultra". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

How fast is D1 Ultra?

Over the last 30 days of requests through the Respan gateway, the lowest response latency was 0.2 seconds on OpenRouter. Speed varies with request size and provider.

D1 Ultra

d1-ultra is Liquid AI's largest decision model, served as a System One endpoint. Send a state of text and images along with typed questions, and it returns a choice, a...

Input / output price: $0.04 / $0.00 per 1M
Weekly tokens / requests: 123 / 7
Context: 33K tokens
Released: Oct 15, 2026

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "d1-ultra".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="d1-ultra",

    messages=[{"role": "user", "content": "Hello!"}],

)

print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "d1-ultra",

  messages: [{ role: "user", content: "Hello!" }],

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "d1-ultra",

    "messages": [{"role": "user", "content": "Hello!"}]

}'

Read docs

Providers

One provider serves this model, priced per 1M tokens after gateway discounts.

Provider	Context	Input	Output	Cache read	Capabilities
OpenRouter`openrouter/liquid/d1-ultra`	33K	$0.04/M	$0.00/M	$0.04/M

Is a provider down? OpenRouter status

Pricing

USD per 1M tokens on OpenRouter, after gateway discounts.

Input: $0.04 per 1M
Output: $0.00 per 1M
Cache read: $0.04 per 1M

Cost by volume

Total cost from 0 to 1T tokens.

$0.04/MOpenRouter

Throughput and latency

30-day averages from requests through the Respan gateway. Under each figure, every model on the gateway by its average, this one in blue.

Response latency

Lower is better

0.2son OpenRouter

Faster than 99% of the other 525 models on the gateway

Apps

Use D1 Ultra in the tools you already run. Each guide points the app at the Respan gateway.

Setup guides for more apps are in the integration docs.

D1 Ultra FAQ

Short answers, built from the data on this page.

Certified where it counts.

Built to meet the security and privacy standards that enterprise and healthcare teams require.

ISO 27001

The internationally recognized standard for information security management.

SOC 2

Secure, compliant management of your data across all of our systems.

GDPR

Operated under GDPR, the world's strictest standard for data privacy.

HIPAA

HIPAA compliant, with a BAA available for healthcare teams.

Works with your entire stack

Use Respan with your favorite frameworks and tools.

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