Question 1

What is Seed 1.6?

Accepted Answer

Seed 1.6 is a model from ByteDance, released on Jun 11, 2025. Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

Question 2

How much does Seed 1.6 cost?

Accepted Answer

On the Respan gateway, input starts at $0.25 per 1M tokens on OpenRouter, and output starts at $2.00 per 1M tokens on OpenRouter, after gateway discounts.

Question 3

Which providers serve Seed 1.6 on Respan?

Accepted Answer

Seed 1.6 is served by OpenRouter.

Question 4

What is Seed 1.6's context window?

Accepted Answer

Seed 1.6 accepts up to 262K tokens of context.

Question 5

How do I use Seed 1.6 with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "seed-1.6". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is Seed 1.6?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was OpenRouter at 30 tokens per second, and the lowest response latency was 2.1 seconds on OpenRouter. Speed varies with request size and provider.

Seed 1.6

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Pricing

Cost by volume

Throughput and latency

Output speed

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Seed 1.6 FAQ

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