Google: Gemma 4 31B (free)

Name: Google: Gemma 4 31B (free)
Author: OpenRouter

31B

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

Context

262K

Max output

33K

Capabilities

Show unsupported (4)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Details

Model IDgoogle/gemma-4-31b-it:free

ProviderOpenRouter

CreatorGoogle AI

Familygemma-4

License—

Status—

Typechat

Input modalitiesimage, text, video

Output modalitiestext

Open weight—

Parameters31B

Architecture—

Context window262K tokens

Max input—

Max output33K tokens

Reasoning tokens—

Knowledge cutoff—

Release date2026-04-02

Sourceofficial

Tools

Function Callingfunction_calling

Call external functions and APIs

Family Comparison: gemma-4

Model	Caps	Perf	Speed	Context	Max out	Pricing
Google: Gemma 4 26B A4B (free)	RTJJM	—	—	262K	33K	—
Google: Gemma 4 31B (free)	RTJJM	—	—	262K	33K	—
Google: Gemma 4 26B A4B	RTJJM	—	—	262K	236K	$0.09$0.3
Google: Gemma 4 31B	RTJJM	—	—	262K	16K	$0.2$0.4
Google: Gemma 4 31B (batch)	RTJJM	—	—	262K	236K	$0.39$0.97

API

GET/v1/models/openrouter/google/gemma-4-31b-it:free

Google: 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.

Changes · 3 entries

google/gemma-4-31b-it:freeupdate20c73acJul 17, 2026, 02:34 AM

max_output_tokens8192→32768

google/gemma-4-31b-it:freeupdateab879c8Jun 18, 2026, 08:32 AM

max_output_tokens32768→8192

google/gemma-4-31b-it:freecreate5c578c7Apr 8, 2026, 03:30 PM