Model comparison

GPT-OSS 120B vs GPT-OSS 20B

Compare listed prices, context windows and vision support.

Side-by-side comparison

SpecGPT-OSS 120BGPT-OSS 20B
Listed input price$0.35/M$0.03/M
Listed output price$0.75/M$0.1/M
Context window128k tokens128k tokens
VisionNoNo

Good for

GPT-OSS 120B

Its mid-range listed input price makes it a balanced daily driver for coding. It fits everyday coding work.

GPT-OSS 20B

Its low listed input price makes it a fit for high-volume work and background automation. That price tier also suits repeated automation runs.

Data summary

GPT-OSS 20B lists lower input and output prices. Both models have a 128k tokens context window. Neither model supports vision.

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Catalog updated 2026-10-21