<- All Models

GPT-5.5

New baseline for complex production workflows. Stronger task execution, more precise tool use, more efficient reasoning with fewer tokens. 1M token context.

1.1M context·$5.00 in·$30.00 out·Apr 2026 release·Vision, Reasoning, Tools / functions, Web search, Image output

Providers

Where GPT-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

OpenAI

creator

gpt-5.5

1.1M

$5.00

$30.00

$0.50

openai/gpt-5.5

1.1M

$5.00

$30.00

$0.50

OpenRouter

delisted

openai/gpt-5.5:batch

1.1M

$2.50

$15.00

$0.25

openai.gpt-5.5

272K

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Usage mix in Big-AGI: Community 56% · OpenAI 44%Specs as reported by each service · usage over the last 2 days · refreshed hourly

Run GPT-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.

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