Rodium AI
OpenAI

GPT-5.5

openai/gpt-5.5

visionchatlong-context

Input price

2980.4 RODI/M

~ 5 USD/M

Output price

17882.3 RODI/M

~ 30 USD/M

Context

1.1M

Max output

128K

Input:textimagedocument
Output:text

Pricing

RateRODIUSD (ref.)Unit
In2980.4~ 5.00USD/M · RODI/M
Out17882.3~ 30.00USD/M · RODI/M
Cached298.1~ 0.500USD/M · RODI/M

RODI prices include Rodium markup and upstream fees. USD figures are wholesale reference rates.

Capabilities

Streaming
Tool calling
Vision
JSON mode
Reasoning

About this model

OpenAI's newest flagship general-purpose model (April 2026). Excels at complex reasoning, coding, and creative tasks. Features a 1M+ token context window. Cached input drops 90% (to $0.50/MTok). Data residency endpoints incur a 10% price uplift.

API usage

Use the canonical model slug in your chat completion requests.

Shell / scripts:

Chat completions docs →