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Gemini 3.6 Flash vs gpt-oss-20b

Side-by-side API pricing and Artificial Analysis performance for Gemini 3.6 Flash (Google) and gpt-oss-20b (OpenAI). Green cells mark the better value in each row.

Prices updated Jul 22, 2026, 1:40 AM UTC · refreshed hourly

Gemini 3.6 Flash

Google

gpt-oss-20b

OpenAI

Pricing
Input $/1M$1.50$0.03
Output $/1M$7.50$0.13
Blended $/1M (3:1)$3.00$0.055
RAG example (30K in / 2K out)$0.06$0.00116
Quality & speed
Intelligence Index50.114.9
Coding Index69.220.7
Agentic Index38.73.1
Output speed (tok/s)301253
Time to first token11.80s0.39s
Specs
Context window1.05M131K
Input modalitiestext, image, video, file, audiotext

FAQ

Which is cheaper, Gemini 3.6 Flash or gpt-oss-20b?

gpt-oss-20b has the lower blended API price at $0.055 per 1M tokens (3:1 input:output mix), versus $3.00 for the other model. Prices are live from OpenRouter and refresh about hourly.

Which is better for RAG workloads?

For a typical RAG request (30K input / 2K output tokens), gpt-oss-20b costs about $0.00116 per request versus $0.06. Also compare context windows: Gemini 3.6 Flash offers 1.05M and gpt-oss-20b offers 131K.

Which scores higher on Artificial Analysis benchmarks?

Gemini 3.6 Flash leads on the Artificial Analysis Intelligence Index (50.1 vs 14.9). Check coding and agentic indices on this page for workload-specific tradeoffs.