Home / Compare / Gemma 4 31B vs Qwen3.8 Flash

Gemma 4 31B vs Qwen3.8 Flash

For a typical chat reply (2,000 tokens in, 400 out), Qwen3.8 Flash costs 1.5× as much as Gemma 4 31B: $0.488 against $0.316 per 1,000 requests at list price on 2026-09-28.

Gemma 4 31BQwen3.8 Flash
Input, per 1M tokens$0.09$0.15
Output, per 1M tokens$0.34$0.47
Context window262K1M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0574$0.0947
Chat reply (2,000 in, 400 out), per 1,000$0.316$0.488
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.89$1.44
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400304316

Which one should carry your traffic?

If Gemma 4 31B answers your requests as well as Qwen3.8 Flash, moving that traffic saves 35% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Gemma 4 31B exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Qwen3.8 Flash.

Gemma 4 31B profile · Qwen3.8 Flash profile · Measure it on your traffic