Gemma 4 31B
GoogleReleased Apr 2, 2026
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...
- Context window
- 262K tokens
- Max output
- 262K tokens
- Input
- image, text, video
- Output
- text
- Tokenizer
- Gemma
- Released
- Apr 2, 2026
- Reasoning
- optional
Pricing
Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.
| Per 1M tokens | Provider | + 3% fee | You pay |
|---|---|---|---|
| Input | $0.120 | $0.0036 | $0.124 |
| Output | $0.350 | $0.010 | $0.360 |
| Cache read | $0.090 | $0.0027 | $0.093 |
Benchmarks
Artificial Analysis
- Intelligence index
- 29.4
- Coding index
- 43.4
- Agentic index
- 14.4
Supported parameters
- frequency_penalty
- include_reasoning
- logit_bias
- logprobs
- max_tokens
- min_p
- presence_penalty
- reasoning
- repetition_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_k
- top_logprobs
- top_p
Call it
OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model google/gemma-4-31b-it.
curl https://api.openkey.ai/v1/chat/completions \
-H "Authorization: Bearer $OPENKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemma-4-31b-it",
"messages": [{"role": "user", "content": "Hello"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.openkey.ai/v1",
api_key=os.environ["OPENKEY_API_KEY"],
)
completion = client.chat.completions.create(
model="google/gemma-4-31b-it",
messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openkey.ai/v1",
apiKey: process.env.OPENKEY_API_KEY,
});
const completion = await client.chat.completions.create({
model: "google/gemma-4-31b-it",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);Questions
- How much does Gemma 4 31B cost via API?
- Through OpenKey, Gemma 4 31B costs $0.124 per 1M input tokens and $0.360 per 1M output tokens. That is the provider price ($0.120 / $0.350) plus a flat 3% fee — nothing else.
- What is Gemma 4 31B's context window?
- Gemma 4 31B accepts up to 262K tokens of context and returns up to 262K tokens per request.
- Is Gemma 4 31B OpenAI-compatible?
- Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "google/gemma-4-31b-it" using any OpenAI SDK — only the base URL and API key change.
- What inputs does Gemma 4 31B support?
- Gemma 4 31B accepts image, text, video input and produces text output.
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