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Gemma-4-31B

Google · gemma-4-31b

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Largest Gemma 4 instruction model for open, self-hosted chat and reasoning

Specification

most-agreed values

Context
262K
Max output
8K
Released
2026-04-02
Knowledge cutoff
2025-01
Retires
—
Open weights
yes
Input
text, image
Output
text

Price

US dollars per million tokens · most-agreed

Input
free
Output
free
Cache read
$0.0144

Batch and priority prices

US dollars per million tokens · per listing

PriceListing$/M
Batch inputbedrock_mantle · bedrock-mantle$0.07
Batch outputbedrock_mantle · bedrock-mantle$0.20
Priority inputbedrock_mantle · bedrock-mantle$0.245
Priority outputbedrock_mantle · bedrock-mantle$0.70

Batch input is 50% below the interactive input price at the same listing.

Quality

3 benchmarks · 1 source

Composite
45th
percentile of 344 scored models
Rank
190 / 344
±0.06 sd
Evidence
3 × 1
one source, or fewer than 3 benchmarks
Effort range
—
one configuration only
reasoning77th1/4 bench
math79th1/7 bench
knowledge2nd1/1 bench

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
OTIS Mock AIME 2024-202573.3 ±6.7minimalEpoch AI2026-08-06
GPQA diamond75.8 ±3.1minimalEpoch AI2026-08-06
SimpleQA Verified10.4 ±1.0defaultEpoch AI2026-08-27

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 6 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
poefreefree——262K8K—
amazon-bedrock$0.14$0.40——262K33K—
bedrock_mantle · bedrock-mantle
$0.14
$0.168
$0.40
$0.48
——256K256K—
neuralwatt$0.144$0.42$0.0144—262K16K—
kyma · kyma$0.1642$0.4689$0.1642—128K8K—
cerebras$0.99$1.49——131K41K—

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02bedrock_mantle · bedrock-mantleInput$0.14
2026-09-09bedrock_mantle · bedrock-mantleInput$0.14
2026-09-02cerebrasInput$0.99
2026-09-07cerebrasInput$0.99
2026-09-02bedrock_mantle · bedrock-mantleOutput$0.40
2026-09-09bedrock_mantle · bedrock-mantleOutput$0.40
2026-09-02cerebrasOutput$1.49
2026-09-07cerebrasOutput$1.49

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