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

Pricing, Performance & Features Comparison

Authoropenai

Context Length400K

Reasoning

Providers1

ReleasedAug 2025

Knowledge Cutoff–

License–

Superseded Bygpt-5.4-nano

GPT-5 Nano is our fastest, cheapest version of GPT-5. It's great for summarization and classification tasks.

Input$0.5

Output$0.4

Latency (p50)5.8s

Output Limit128K

Function Calling

JSON Mode

InputText, Image

OutputText

in$0.5out$0.4–write$0.05

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

–