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Perplexity Agent API adds the ultra effort level (November 5, 2026)
effort="ultra" runs long, broad research and data-gathering jobs on Claude Opus 5.5. Use background mode for the long runs.
Your keys
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- Perplexity API keyPERPLEXITY_API_KEYGet key
Open the API Keys page in the Perplexity API console and generate a key. Add credits in Billing first.
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What you get
The Agent API has a new ultra effort level, released as ultra@2026-11-05.0. It is for broad research and data-gathering tasks where coverage matters most. It runs on anthropic/claude-opus-5-5. Runs can take a long time, so you can start them in background mode and collect the result later.
Prerequisites
- A Perplexity API key in
PERPLEXITY_API_KEY, with credits added in Billing. - The Perplexity Python SDK (
from perplexity import Perplexity).
Steps
Official example:
from perplexity import Perplexity
client = Perplexity()
response = client.responses.create(
effort="ultra",
input="Build a data-backed market map for AI coding agents: gather recent product launches, compare pricing and benchmarks, and use code to calculate a capability-weighted score.",
)
print(response.output_text)