Google

Gemma 4 31B

Vérifié par l’équipe de recherche de GetInfoUsDernière révision : October 2026Politique éditoriale
Raisonnement à Poids OuvertsOfficial Source Verified ↗
81
Intelligence Index

Gemma 4 31B de Google est un modèle d’IA conçu pour le raisonnement par chaîne de pensée à poids ouverts et haute efficacité, offrant une fenêtre de contexte de 262K, une vitesse de 80 tokens/s, un indice d’intelligence de 81/100 et un tarif de accès gratuit à poids ouverts.

Technical Specifications

Provider
Google
Category
open-source
Release Date
2026-04
Knowledge Cutoff
January 2026
Architecture
Dense open reasoning transformer with native thinking
Parameters
31B
Context Window
262K tokens
Max Output
33K tokens
Cached Input Price
$0 / 1M tokens
Batch API Discount
Standard rate
Consumer Subscription
Free / Self-Hosted
Reasoning Mode
Yes (Chain-of-Thought)
Reasoning Effort Control
Configurable (Low / Med / High)
Tool Calling
Yes
Structured Outputs
Yes
Open Weights
Yes (Open Source / Self-Hostable)
Input Modalities
text, vision
Output Modalities
text
Official Documentation
Visit Official Docs ↗

Data Privacy, Licensing & Deployment Governance

API Data Training Policy
100% Isolated when self-hosted on private GPUs or VPC
Model License & Commercial Rights
Open-Weights Research & Commercial License
Deployment & Cloud Availability
Self-Hosted GPU (vLLM / Ollama), Private VPC, or Managed Serverless API
Output Ownership
Full commercial ownership of generated outputs

Official Provider Release Intelligence, API Quotas & Agentic Specs

Compare Multi-Models Side-by-Side →
Official API Model ID (SDK String)
models/gemma-4-31b
Supported SDK & API Protocol
Google Gemini API (generateContent) + OpenAI-Compatible SDK
Lifecycle & Deprecation Status
Active GA (Guaranteed support through 2028+)
Production Rate Limits (RPM & TPM)
Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud
Long-Context Pricing Tier (>128K / >200K)
Free across full context window (only KV-cache VRAM scales)
Prompt Cache Write & TTL Policy
Automatic prefix KV-caching in vLLM / SGLang (0 cost)
Computer Use & Browser GUI Agent
Supported (Screen coordinate grounding, browser & desktop GUI action loops)
MCP & Parallel Tool Calling
Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
Web Search Grounding & Code Sandbox
Built-in Google Search Grounding + Managed Python Code Execution Sandbox
Fine-Tuning & Distillation Support
Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)
Multimodal Tokenization Billing
Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile)
Weights Precision & Quantization
BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0)
Minimum GPU VRAM Requirement
19 GB VRAM (4-bit Quantized) · 67 GB VRAM (Native BF16)
Supported Inference Engines
vLLM, SGLang, Ollama, llama.cpp, TensorRT-LLM, HuggingFace TGI
System Card & Safety Framework
Google DeepMind Frontier Safety Framework Verified
Enterprise Compliance (SOC2 / HIPAA / ZDR)
100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control
Engineering & Pricing Workbench

Gemma 4 31B Cost, Context, Hardware & API Integration

500 / day
4,000 tok
1,000 tok
Conversation Depth (History Re-billing):1 Turn (Single-Shot)
50%
Estimated Monthly API Cost (30 Days)
Free ($0)
Subscription ($20/mo) vs API

Open-weights or free-tier model: $0 API license cost when self-hosted.

Same Monthly Workload Cost Across Popular Reference Models

Gemma 4 31B (Active)
$0.00
/ month
Gemini 2.5 Flash
$18.00
/ month
DeepSeek V3
$32.70
/ month
GPT-4o
$300.00
/ month
Claude 3.7 Sonnet
$405.00
/ month

Live Prompt Paste Tokenizer & Cost Counter

Paste real system instructions, JSON schemas, or code to measure BPE token counts across tokenizers.

Chars / Words
175 / 24
OpenAI o200k
~46 tok
Claude BPE
~49 tok
Llama / DeepSeek
~51 tok

Hybrid Prompt Routing Cascade Simulator

Route routine queries to a fast lightweight model ($0.15/1M) and escalate only complex reasoning turns to Gemma 4 31B:

Cascaded Monthly Bill:$13.50/mo
This model is already priced at or below the fast router baseline.

Benchmark Scores & 6-Axis Capability Radar

Benchmark Encyclopedia
Coding (79)Reasoning (89)Knowledge (85)Speed (53)Context (85)Cost Value (98)
Gemma 4 31B2026 Frontier Median
SWE-bench Verified
68.5%
GPQA Diamond
77%
MMLU-Pro
84.8%
HumanEval
92.5%
AIME
86%
Chatbot Arena Elo
1410pts

Strengths

  • Fenêtre de contexte de 262K et capacité de sortie maximale de 33K tokens (SWE-bench Verified 68.5% · GPQA Diamond 77%)
  • Débit rapide de 80 tokens/seconde avec une latence au premier token (TTFT) de 480 ms
  • Poids ouverts (31B) permettant un déploiement sur site ou cloud privé via vLLM, SGLang ou Ollama

Limitations & Trade-offs

  • Nécessite des serveurs GPU dotés de suffisamment de mémoire VRAM pour l’inférence locale à pleine précision
  • Sur les problèmes de recherche fondamentale très complexes, les modèles de raisonnement lourd restent supérieurs

Editorial Assessment

Alliant un indice d’intelligence de 81/100, un contexte de 262K et un débit de 80 tok/s, Gemma 4 31B s’impose comme une valeur sûre de la gamme Google.

Best for: Conçu pour le raisonnement par chaîne de pensée à poids ouverts et haute efficacité, l’intégration RAG et les pipelines de production évolutifs.

Frequently Asked Questions about Gemma 4 31B

How much does the Gemma 4 31B API cost per 1M tokens?+

Gemma 4 31B by Google is priced at $0 per 1M input tokens and $0 per 1M output tokens. With prompt caching enabled, cached input tokens cost $0 per 1M tokens, and asynchronous Batch API requests receive a 0% discount.

Should I use a $20/month subscription or the Gemma 4 31B pay-as-you-go API?+

A flat $20/month consumer subscription is predictable for daily interactive chat and manual coding. However, if you are building software, running automated workflows, or sending low-to-moderate volume with prompt caching enabled, the pay-as-you-go API is typically far more cost-effective and offers higher rate limits without manual UI caps.

How many words and pages fit in Gemma 4 31B's context window?+

Gemma 4 31B features a 262K tokens context window, which equals approximately 196,608 English words or ~524 standard single-spaced pages in a single prompt. Its maximum output generation per turn is 32,768 tokens.

Can I run Gemma 4 31B locally on my own GPU (Open Weights)?+

Yes, Gemma 4 31B (31B) releases open weights that can be self-hosted locally or on private cloud GPUs using vLLM, Ollama, SGLang, or llama.cpp.

Does Google train on data sent to the Gemma 4 31B API, and is commercial use allowed?+

100% Isolated when self-hosted on private GPUs or VPC. License tier: Open-Weights Research & Commercial License. Full commercial ownership of generated outputs. Supported deployment channels include: Self-Hosted GPU (vLLM / Ollama), Private VPC, or Managed Serverless API.

How does Gemma 4 31B perform on coding and reasoning benchmarks?+

Gemma 4 31B achieves a composite Intelligence Index of 81/100, scoring 68.5% on SWE-bench Verified, 77% on GPQA Diamond, 84.8% on MMLU-Pro, and 1410 pts on Chatbot Arena Elo.

What is Gemma 4 31B best used for?+

Gemma 4 31B is best suited for: Conçu pour le raisonnement par chaîne de pensée à poids ouverts et haute efficacité, l’intégration RAG et les pipelines de production évolutifs.. Assessment: Alliant un indice d’intelligence de 81/100, un contexte de 262K et un débit de 80 tok/s, Gemma 4 31B s’impose comme une valeur sûre de la gamme Google.

Les scores de benchmarks, tarifs par token et limites évoluent rapidement. Vérifiez toujours les spécifications actuelles sur la documentation officielle du fournisseur.

Sources: Google DeepMind Gemma 4 Release Documentation↗