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Google: Gemma 4 31B (free) API Pricing
Google: Gemma 4 31B (free) costs Free per 1M input tokens and Free per 1M output tokens. Context window: 262K. Prices verified 2026-08-23 · source
Input / 1M tokens
Free
Output / 1M tokens
Free
Context window
262K
Max output
33K
What would Google: Gemma 4 31B (free) cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $0.00 |
| Coding agent | 5,000 | 8,000 / 2,000 | $0.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $0.00 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $0.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About Google: Gemma 4 31B (free)
Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output. Features a 256K token context window, configurable thinking/reasoning mode, native function...