Gemini 4 Hydrogen
Chat model · Google ·
Gemini 4 Hydrogen is a chat model by Google. In Endless it costs 133 credits per 1M input tokens and 664.9 per 1M output tokens, on every plan.
Gemini 4 Hydrogen is Google's fast Gemini 4 model for everyday coding and agent work, scoring level with Gemini 4 Argon while finishing tasks sooner.
133 / 664.9 credits per 1M tokens
- Price
- 133 credits per 1M input tokens
- 664.9 credits per 1M output tokens
- Availability
- Available on every plan
- Context window
- 1M tokens
- Max output
- 1M tokens
- Inputs
- Text, images, PDFs, video
- Outputs
- Text
About Gemini 4 Hydrogen
Gemini 4 Hydrogen is the third model in Google's Gemini 4 line, released on November 12, 2026. Google calls it a daily driver for agentic workflows: Gemini 4 Carbon and Argon take the deepest, longest reasoning, and Hydrogen is built to carry out work quickly. It reads text, images, PDFs and video across a 1M-token context, writes up to 1M tokens in one reply, and supports tool calling and structured outputs.
Google reports it scores 51 on the Artificial Analysis Intelligence Index at its default high thinking level, one point above Argon, and 54 at the new xhigh level. Against Gemini 3.8 Flash it finishes tasks about 2.5 times faster, raises Terminal-Bench 4.1 from 18.2% to 57%, and makes more than five times fewer fabricated claims. It entered Arena's agent leaderboard in fifth place.
Pick it for the bulk of daily work: fixing and refactoring code, running tools across several steps, and reading long PDFs, spreadsheets and recorded video. Gemini 4 Carbon remains the choice for the hardest multi-step problems, where it spends more tokens to reason and check its work. All of them live in Endless chat, and you can switch between them in the same workspace.
Best for
- Everyday coding: fixing bugs, refactoring and writing tests
- Multi-step agent work that calls tools along the way
- Reading long PDFs, spreadsheets, charts and recorded video
- Data-heavy work such as SQL and analysis over large inputs
Questions about Gemini 4 Hydrogen
- What is Gemini 4 Hydrogen?
- Gemini 4 Hydrogen is a chat model by Google.
- Is Gemini 4 Hydrogen free?
- You can try Gemini 4 Hydrogen for free. It is on every Endless plan, including Free, which gives you 100 credits when you create a workspace and 50 credits every week. Each run spends credits from that balance.
- How much does Gemini 4 Hydrogen cost?
- In Endless it costs 133 credits per 1M input tokens and 664.9 per 1M output tokens, on every plan.
- How do I use Gemini 4 Hydrogen?
- Start a chat in your Endless workspace and choose Gemini 4 Hydrogen in the model picker. Endless can also pick the best model for each message on its own.
- What are the alternatives to Gemini 4 Hydrogen?
- Similar models you can use in Endless include Gemini 4 Argon, Gemini 3.8 Flash, and Gemini 4 Carbon. Each one has its own page with its price and plan.
- What is Gemini 4 Hydrogen?
- It is Google's fast, efficient model in the Gemini 4 line, built for everyday coding and agent workflows. Google released it on November 12, 2026, after Gemini 4 Argon and Carbon.
- Should I use Hydrogen, Argon or Carbon?
- Hydrogen for most daily coding and agent tasks, where speed matters; Google reports it matches Argon on the Artificial Analysis Intelligence Index. Carbon for the hardest multi-step problems, where it spends more tokens to reason and check its answers.
- How does it compare with Gemini 3.8 Flash?
- Google calls it a major upgrade for teams moving from 3.8 Flash: tasks finish about 2.5 times faster at the default setting, Terminal-Bench 4.1 rises from 18.2% to 57%, and fabricated claims drop by more than five times.
- How much can it read and write?
- It accepts up to 1M tokens of input, including text, images, PDFs and video, and can write up to 1M tokens in a single reply.
How to use Gemini 4 Hydrogen in Endless
- 01
Open a chat
Start a chat in your workspace and choose Gemini 4 Hydrogen in the model picker.
- 02
Bring your context
Attach files, mention a project with @, or ask it to search the web and social media.
- 03
Turn answers into work
Generate images and video, write documents and save what matters to a project.
Related models
Gemini 4 Argon
by Google
Very long outputs for large code migrations and deep document work
354.6 / 1773.1 credits per 1M tokens
Gemini 3.8 Flash
by Google
Agentic coding and multi-step reasoning at Flash speed
133 / 664.9 credits per 1M tokens
Gemini 4 Carbon
by Google
Google's strongest model for hard coding, long agent runs and security work
307.7 / 1538.5 credits per 1M tokens
Start a chat with Gemini 4 Hydrogen
Gemini 4 Hydrogen is on every plan, including Free. Create a workspace and get 100 credits to start, plus 50 credits every week.