Model comparison

Gemma 4 31B vs GPT 5.6 Luna

Compare listed prices, context windows and vision support.

Side-by-side comparison

SpecGemma 4 31BGPT 5.6 Luna
Listed input price$0.2/M$0.2/M
Listed output price$0.2/M$1.2/M
Context window128k tokens1M tokens
VisionYesYes
AvailabilityLiveRetired 6 October 2026

Good for

Gemma 4 31B

Its mid-range listed input price makes it a balanced daily driver for coding. Vision support fits UI screenshots, browser and visual tasks.

GPT 5.6 Luna

Its mid-range listed input price makes it a balanced daily driver for coding. Vision support fits UI screenshots, browser and visual tasks, while the 1M tokens context window suits large monorepos and long sessions.

Data summary

Gemma 4 31B lists the lower output price; input prices match. GPT 5.6 Luna offers the larger context window. Both models support vision.

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Catalog updated 2026-10-17