Question 1

What is Claude Opus 4.6 (Fast)'s context window?

Accepted Answer

Claude Opus 4.6 (Fast) supports a context window of 1,000,000 tokens.

Question 2

How much does Claude Opus 4.6 (Fast) cost?

Accepted Answer

Input is $30.00 per million tokens; output is $150.00 per million tokens; according to the OpenRouter catalog..

Question 3

Who makes Claude Opus 4.6 (Fast)?

Accepted Answer

Claude Opus 4.6 (Fast) is provided by Anthropic. The OpenRouter catalog entry is anthropic/claude-opus-4.6-fast.

Question 4

How does Claude Opus 4.6 (Fast) compare with Claude 3.7 Sonnet?

Accepted Answer

Compare Claude Opus 4.6 (Fast) with Claude 3.7 Sonnet for a side-by-side view of their catalog-backed specifications.

Question 5

What is Claude Opus 4.6 (Fast) best for?

Accepted Answer

Claude Opus 4.6 (Fast) is described by Anthropic as follows: Fast-mode variant of Opus 4.6 - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs:

Question 6

How can I use Claude Opus 4.6 (Fast) on Krater?

Accepted Answer

Open Claude Opus 4.6 (Fast) in Krater and start a conversation with it alongside hundreds of other AI models.

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