gpt-oss-20b vs claude-opus-5-fast

Side-by-side token cost comparison · updated every 5 minutes

Metricgpt-oss-20bclaude-opus-5-fast

Input / 1M tokens

$0.0300✓

$10.0000

Output / 1M tokens

$0.1300✓

$50.0000

Context window

131K

1M✓

Provider

OpenAI

Anthropic

Confidence

MEDIUM

MEDIUM

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