gpt-oss-20b vs gpt-5-2025-08-07

Pricing, Performance & Features Comparison

Authoropenai

Context Length131K

Reasoning

Providers0

ReleasedAug 2025

Knowledge Cutoff–

License–

OpenAI medium-sized open weight model for low latency.

Input–

Output–

Latency (p50)–

Output Limit131K

Function Calling

JSON Mode

InputText

OutputText

–

Authoropenai

Context Length400K

Reasoning

Providers1

ReleasedAug 2025

Knowledge Cutoff–

License–

GPT-5 is our flagship model for coding, reasoning, and agentic tasks across domains.

Input$1.3

Output$10

Latency (p50)5.8s

Output Limit128K

Function Calling

JSON Mode

InputText, Image

OutputText

in$1.3out$10–write$0.13