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gpt-oss-20b vs gpt-oss-120b

Pricing, Performance & Features Comparison

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Authoropenai

Context Length131K

Reasoning

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Providers0

ReleasedAug 2025

Knowledge Cutoff-

License-

OpenAI medium-sized open weight model for low latency.

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Latency (p50)-

Output Limit131K

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JSON Mode

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Authoropenai

Context Length131K

Reasoning

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Providers0

ReleasedAug 2025

Knowledge Cutoff-

License-

OpenAI most powerful open weight model, which fits into a single H100 GPU.

Input-

Output-

Latency (p50)-

Output Limit131K

Function Calling

JSON Mode

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OutputText

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