Claude Opus 5.5 character

Perplexity Agent API and Claude Opus 5.5

2 products from Perplexity AI and Anthropic

Limits change

Perplexity Agent API xhigh effort raises max steps from 100 to 300

The xhigh level stays on Claude Opus 5.5 with GPT-6.1 Sol as fallback. Context compaction starts at 150,000 tokens, and it no longer sends a system prompt.

Before

100 max steps

After

300 max steps

Who is affected:
Agent API users on xhigh effort or frozen configurations.
What to do:
Copy the updated values if you use a frozen configuration.

Source

"Max steps rise from 100 to 300, and context compaction starts at 150,000 tokens."

Perplexity API changelog

Published

Open the sourcedocs.perplexity.ai

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