Gemini 4 Hydrogen
gemini-4-hydrogen
Google · chat · api
Context
1M
Max output
65.5K
Input $/1M
$1.50
Output $/1M
$7.50
Modalities
text
Released
12 Nov 2026
AI summary
● machine-written
Google releases Gemini 4 Hydrogen for agentic workflows
Gemini 4 Hydrogen is a text-based API model designed for rapid execution across agentic and coding workflows, with a 1M-token context window and 65.5K default max output. It surpasses Gemini 4 Argon on the Artificial Analysis Intelligence Index at default high thinking level (51 vs. 50) while often completing tasks faster. The model is priced at $1.50 per million input tokens and $7.50 per million output tokens, flat across its entire context window.
What's new
- 1M-token unified context window with long decode support up to 1M tokens
- Supports agentic video understanding, code execution, computer use, and structured outputs
- Priced at $1.50/$7.50 per million tokens (input/output), flat across full context
- Available across Google AI Studio, Gemini API, Gemini app, Google Search, and paid tiers
- Orchestrator feature in Google Antigravity enables automatic model switching with Carbon and Argon
Best for
Rapid code execution and everyday coding tasksAgentic workflows requiring fast, disciplined executionMulti-model workflows paired with frontier models for efficiencyParallel agent architectures with worker and verifier agents
Source: https://ai.google.dev/gemini-api/docs/models/gemini-4-hydrogen