Gemma 4 31B API Pricing
Google · Budget · Gemma · released 2026-04. Prices in USD per 1 million tokens. Data snapshot: 2026-09-28.
The price we publish for Gemma 4 31B has changed 3 times since 2026-08-15, most recently by -1.1% on 2026-08-26; it is now the 52nd cheapest of 142 Budget models. Buying from Reka rather than at the rate quoted here lowers the token price by about 12%. No Arena score is published for it, so it carries no Efficiency score and cannot hold the FinOps Friendly badge.
- Input: $0.09 per 1M tokens
- Output: $0.34 per 1M tokens
- Batch API (input/output): not published
- Prompt-cache read: $0.05
- Context window: 262K
Gemma 4 31B market position
On blended price ($0.265 per 1M tokens at 30% input, 70% output) it is cheaper than 64% of Budget models: 52nd cheapest of 142. Across every category it is cheaper than 82% of priced text models in the catalogue: 52nd cheapest of 281.
Gemma 4 31B licence, size and capabilities
Gemma 4 31B is open weights, which is not the same as open source: the weights are published, but under Gemma, a licence that restricts some uses. Read it before self-hosting commercially. Its published size is 31B parameters. Listed capabilities: Text, Vision, Reasoning, Agents. Filling its 262K context window once costs $0.02 in input tokens at list price.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $27 – $31 |
| Knowledge Q&A | 2,000 / 800 | $40 – $45 |
| Meeting Summary | 10,000 / 1,200 | $127 – $131 |
| Marketing Content | 2,500 / 1,800 | $82 – $84 |
| Coding Task | 3,000 / 2,000 | $89 – $95 |
| Invoice Processing | 1,500 / 600 | $32 – $34 |
| Call Summary | 2,000 / 700 | $41 – $42 |
| Agent Workflow | 6,000 / 3,000 | $139 – $156 |
Gemma 4 31B pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 13 different hosts. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-28 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown. These hosts do not all serve the model at the same numeric precision, so the cheapest is not a like-for-like substitute for the dearest.
Cheapest host: Reka at $0.08 input / $0.30 output per 1M tokens, 12% below the price we publish on a blended basis (30% input, 70% output). The dearest, SiliconFlow, charges 4.0x the cheapest.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| Reka | $0.08 | $0.30 |
| DeepInfra (the price shown above) — fp4 | $0.09 | $0.34 |
| CoreWeave — fp4 | $0.10 | $0.34 |
| Venice — fp4 | $0.12 | $0.36 |
| Chutes — fp4 | $0.12 | $0.37 |
| Crusoe — bf16 | $0.14 | $0.40 |
| Friendli | $0.14 | $0.40 |
| Novita — bf16 | $0.14 | $0.40 |
| Parasail — fp8 | $0.15 | $0.40 |
| Io Net | $0.38 | $1.15 |
| SambaNova | $0.38 | $1.15 |
| ModelRun — fp4 | $0.75 | $1.00 |
| SiliconFlow — fp8 | $0.75 | $1.00 |
Gemma 4 31B price history
Gemma 4 31B has been in our daily price archive since tracking began on 2026-08-15, when it listed at $0.10 input / $0.34 output per 1M tokens. The price we publish has changed 3 times since then. The latest change, on 2026-08-26, was -1.1% on the blended price (30% input, 70% output), to $0.09 input / $0.34 output. Net of all changes, the blended price is -1.1% against 2026-08-15.
| Date | Old price (in / out) | New price (in / out) | Blended change |
|---|---|---|---|
| 2026-08-26 | $0.10 / $0.34 | $0.09 / $0.34 | -1.1% |
| 2026-08-21 | $0.09 / $0.34 | $0.10 / $0.34 | +1.1% |
| 2026-08-19 | $0.10 / $0.34 | $0.09 / $0.34 | -1.1% |
Alternatives to Gemma 4 31B
- Next cheaper Budget model: Llama 3.3 70B Instruct (Meta) at $0.254 blended, 4% less.
- Next more expensive: Qwen3 235B A22B Instruct 2507 (Alibaba) at $0.271 blended, 2% more.
Common questions about Gemma 4 31B pricing
- How much does Gemma 4 31B cost?
- Gemma 4 31B costs $0.09 per million input tokens and $0.34 per million output tokens on the API.
- Does Gemma 4 31B offer batch or cached pricing?
- Prompt-cache reads cost $0.05/M input tokens. No batch pricing is published.
- What would Gemma 4 31B cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, Gemma 4 31B costs about $31 at list prices.
- Has the price of Gemma 4 31B changed?
- Gemma 4 31B has been in our daily price archive since tracking began on 2026-08-15, when it listed at $0.10 input / $0.34 output per 1M tokens. The price we publish has changed 3 times since then. The latest change, on 2026-08-26, was -1.1% on the blended price (30% input, 70% output), to $0.09 input / $0.34 output. Net of all changes, the blended price is -1.1% against 2026-08-15.
These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.
Build the business case for Gemma 4 31B in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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