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Gemma 4 31B (free)

google/gemma-4-31b-it:free

Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output.

Free in · Free out per 1M tokens262k contextApr 2, 2026

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Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens
$0
Output, per 1M tokens
$0
Margin
none

Context and formats

Context window
262,144 tokens
Longest answer
32,768 tokens
Reads
text, images, and video
Makes
text
First listed
2026-04-02

Measured here, last 7 days

First token, median
not measured
Answered without error
not measured

Tools and JSON

Tool calling
declaredthe provider's claim, not yet measured here
JSON output
declaredthe provider's claim, not yet measured here

Price and latency history as JSON: GET /api/planet/history?id=google/gemma-4-31b-it:free.

About

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...

In Google's words.

Try it here

The answer appears here.

Measured here

Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "google/gemma-4-31b-it:free", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

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Gemma 4 31B (free) price on Antimatter
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