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OpenAI

gpt-oss-20b

openai/gpt-oss-20b

chatreasoningcodingtoolsopen-sourceaffordable

Input price

52.8 RODI/M

~ 0.07 USD/M

Output price

226.1 RODI/M

~ 0.3 USD/M

Context

128K

Max output

16K

Input:text
Output:text

Providers & pricing

ProviderInputOutputFree tier
AWS

AWS

Default

52.8 RODI/M~0.0700 USD/M226.1 RODI/M—

Pricing

RateRODIUSD (ref.)Unit
In52.8~ 0.0700USD/M · RODI/M
Out226.1~ 0.300USD/M · RODI/M

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

Capabilities

Streaming
Tool calling
Vision
JSON mode
Reasoning

About this model

gpt-oss-20b is OpenAI's 20B open-weight model for efficient text generation, coding, and reasoning at lower cost.

API usage

Use the canonical slug with client.chat() or chat.completions.create().

RodiumAi SDK

Official Python, JavaScript, and Laravel SDKs — flat API aligned with this model slug.

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Compatible SDKs (OpenAI / Anthropic packages)

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gpt-oss-20b — Models