gpt-oss-20b is 4.6× cheaper per million tokens (blended). Gemini 2.5 Flash Lite has the larger context window (1,048,576 vs 131,072 tokens, 8.0×). gpt-oss-20b is open-weights; the other is not.

Gemini 2.5 Flash Lite vs gpt-oss-20b

Live catalog fields. Best-in-row is highlighted.

Gemini 2.5 Flash Lite

Google · google__gemini-2.5-flash-lite

gpt-oss-20bopen

OpenAI · openai__gpt-oss-20b

Identity

Fieldgoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
ProviderGoogleOpenAI
Sluggoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
Statuslivelive
Open weightsNoYes
License——
HuggingFace—openai/gpt-oss-20b

Quality

Fieldgoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
Quality index (0–100)——

Cost

Fieldgoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
Input $ / 1M tokens$0.10$0.02
Cached input $ / 1M$0.01$0.01
Output $ / 1M tokens$0.40$0.09

Context

Fieldgoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
Max context tokens1,048,576131,072
Max output tokens65,53532,768

Modalities

Fieldgoogle__gemini-2.5-flash-liteopenai__gpt-oss-20b
Inputtext, image, file, audio, videotext
Outputtexttext