Voyage 4 Large

voyage-4-large is a state-of-the-art general-purpose and multilingual embedding optimized for retrieval quality. Enabled by Matryoshka learning and quantization-aware training, voyage-4-large supports embeddings in 2048, 1024, 512, and 256 dimensions, with...

Input / output price: $0.12 / $0.00 per 1M
Context: 32K tokens
Released: Jan 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 "voyage-4-large".

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="voyage-4-large",

    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: "voyage-4-large",

  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": "voyage-4-large",

    "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
OpenRouterRetired`openrouter/voyage-4-large`	32K	$0.12/M	$0.00/M	$0.00/M	—

Is a provider down? OpenRouter status

Pricing

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

Input: $0.12 per 1M
Output: $0.00 per 1M

Cost by volume

Total cost from 0 to 1T tokens.

$0.12/MOpenRouter

Apps

Use Voyage 4 Large 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.

Voyage 4 Large FAQ

Short answers, built from the data on this page.

Voyage 4 Large is a model from Voyage AI, released on Jan 15, 2026. voyage-4-large is a state-of-the-art general-purpose and multilingual embedding optimized for retrieval quality. Enabled by Matryoshka learning and quantization-aware training, voyage-4-large supports embeddings in 2048, 1024, 512, and 256 dimensions, with...

On the Respan gateway, Voyage 4 Large costs $0.12 per 1M input tokens and $0.00 per 1M output tokens on OpenRouter, after gateway discounts.

Voyage 4 Large is served by OpenRouter.

Voyage 4 Large accepts up to 32K tokens of context.

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "voyage-4-large". To set it up with a coding agent, copy the agent setup prompt at the top of this page.