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Claude Sonnet 5.5

NEW

Best combination of speed and intelligence

1M context·$2.00 in·$10.00 out·Sep 2026 release·Vision, Reasoning, Tools / functions, Web search

Providers

Where Claude Sonnet 5.5 runs in Big-AGI, with each service's own model ID and USD-per-1M-token rates. The summary above prefers the creator's claim; rates below are each service's own.

ServiceModel IDContextInputOutputCache read

Anthropic

creator

claude-sonnet-5-5

1M

$2.00

$10.00

$0.20

anthropic/claude-sonnet-5.5

1M

$2.00

$10.00

$0.20

global.anthropic.claude-sonnet-5-5

1M

$2.00

$10.00

$0.20

Usage mix in Big-AGI: OpenRouter 95% · Anthropic 5%Specs as reported by each service · usage over the last 2 days · refreshed hourly

Run Claude Sonnet 5.5 in Big-AGI.

Connect your own key on any of the services above, at their rates, no markup - and run it side by side with every other model.

Launch Big-AGI

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