Google · llm model

Gemini 4 Hydrogen

Gemini 4 Hydrogen is Google's latest language model in our dataset, released Nov 12, 2026. Proprietary, API access only. Google's fast Gemini 4 model for everyday coding and agentic workflows, released Nov 12, 2026 across the Gemini API, AI Studio, Gemini for business, the Gemini app and Search. Verified against vendor sources on Nov 12, 2026.

Reported Last verified Nov 12, 2026 · All models · JSON · Markdown

Primary source: https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-hydrogen/. We are the fast, independent index; the vendor’s own page is the source of record for these model facts.

Gemini 4 Hydrogen at a glance: API id gemini-4-hydrogen; 1,048,576-token context window; up to 65,536 output tokens; takes text, image, video, audio, pdf in; listed price $1.5 in / $7.5 out per 1M tokens.

ReleasedNov 12, 2026
Context window1.05M1,048,576 tokens
Max output66K65,536 tokens
LicenceProprietaryProprietary (API)

InTextImageVideoAudioPDFOutnot verified

Key facts

Vendor-reported facts are read from the linked vendor page on the date shown above; we did not run the model. Independently tested means we ran it; no fact on this page is. Editorial is our own classification, not a vendor claim. Where a linked page does not itself state a value, the row says so. How to read provenance.

Gemini 4 Hydrogen: key facts with sources
Fact	Value	Label	Source
Vendor	Google	Editorial	n/a
Released	Nov 12, 2026	Vendor-reported	source
Status	generally available	Editorial	n/a
API id	gemini-4-hydrogen	Vendor-reported	source
Context window	1,048,576 tokens (1.05M)	Vendor-reported	source
Max output	65,536 tokens Default synchronous limit; up to 1,048,576 with long decode.	Vendor-reported	source
Input	text, image, video, audio, pdf	Vendor-reported	source
Licence	Proprietary (API)	Vendor-reported	source
Pricing	$1.5 in / $7.5 out per 1M tokens Flat across the full 1M-token context, per the launch post. Prices: blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-hydrogen · Checked Nov 12, 2026	Vendor-reported	source

Where Gemini 4 Hydrogen sits in our data

Released Nov 12, 2026 (week 46 of 2026), in November 2026. Other models in our data released that month: Gemini Decision 1, Gemini Robotics 2.5, Live 3, PAN 2.
The previous Google model we track is Gemini Decision 1 (Nov 11, 2026), 1 day earlier.
Of the 75 models in our data with a published context window, Gemini 4 Hydrogen has the number 12 largest (1.05M tokens). Our data is not every model on the market.
Google tools we cover: Gemini Notebook, Google ADK, Gemini CLI.
All releases by date: AI model releases by month · new AI models this week. Choosing for code: best LLM for coding. Price and rank context: LLM pricing comparison · cheapest LLM API · OpenRouter pricing · best AI model right now.

Alternatives to Gemini 4 Hydrogen

Language models from other vendors that share at least one of our groups with Gemini 4 Hydrogen. Comparable on paper, from each model’s sourced facts; we have not run them.

MiniMax M3.1 FlashMiniMax · Both in: Agents, Coding, Small and fast · $0.15 in / $0.6 out per 1M tokens · 1M context · released Oct 19, 2026
Claude Fable 5.2Anthropic · Both in: Coding, Agents · $8 in / $40 out per 1M tokens · 1M context · released Nov 9, 2026
Muse EmberMeta · Both in: Small and fast, Agents · $0.1 in / $0.5 out per 1M tokens · 1.05M context · released Nov 9, 2026
Inkling 2 SmallThinking Machines Lab · Both in: Agents, Coding · released Nov 5, 2026
LongCat-2.5LongCat (Meituan) · Both in: Agents, Coding · $0.3 in / $1.2 out per 1M tokens (launch promo, Listed as a limited-time discount with no end date or regular price given.; list price after the promo not stated) · 1M context · released Nov 2, 2026
GPT-6.1 TerraOpenAI · Both in: Agents, Small and fast · $1 in / $5 out per 1M tokens · 1.05M context · released Oct 26, 2026

Side by side: Best AI model for agents (Nov 2026): Claude Opus 5.5 leads Terminal-Bench 4.0 · Longest context window LLMs

How Gemini 4 Hydrogen differs from Gemini 4 Carbon

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

Listed price is $1.5 in and $7.5 out, against $2 in and $10 out for Gemini 4 Carbon (per 1M tokens).
Gemini 4 Hydrogen lists a 1.05M-token context window; we have none recorded for Gemini 4 Carbon.
Gemini 4 Hydrogen came out 15 days after Gemini 4 Carbon.
Facts for the other model: Gemini 4 Carbon.

What the sources say

These are claims from the linked pages, not our measurements.

Vendor claim (Google): 51 on the Artificial Analysis Intelligence Index at default high thinking, 54 at xhigh. We did not verify this.
Vendor claim (Google): 57% on Terminal-Bench 4.1 vs 18.2% for Gemini 3.8 Flash. We did not verify this.

What we tested

Nothing yet. We have not run Gemini 4 Hydrogen ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.

Not verified, left out

We could not confirm these on a vendor page, so we do not state them.

Cached-input and batch pricing: not stated in the launch post; the API page says explicit caching is not supported.

Gemini 4 Hydrogen FAQ

When was Gemini 4 Hydrogen released?

Google released Gemini 4 Hydrogen on Nov 12, 2026. Source.

How much does Gemini 4 Hydrogen cost?

The listed API price is $1.5 in / $7.5 out per 1M tokens. Prices change; the source shows the current figure. Source.

How large is the Gemini 4 Hydrogen context window?

1,048,576 tokens, with up to 65,536 output tokens. Source.

Is Gemini 4 Hydrogen open weights?

No. The weights are not published; the licence is listed as Proprietary (API). Source.

What is the API model id for Gemini 4 Hydrogen?

gemini-4-hydrogen. Source.

Has Agentic Weekly tested Gemini 4 Hydrogen?

Not yet. Every fact on this page is Reported: read from the linked vendor pages, not measured by us.

Sources

Compare and guides

We have no head-to-head page or guide that names Gemini 4 Hydrogen yet. These hubs cover the models we do compare.

All model comparisons · All guides · Model releases by month

The Weekly Verdict. Free, every Monday.

A free email every Monday: the week's few big AI releases, then 5 short use cases for the new models, each with a prompt you can paste.

Free. Double opt-in. One click to unsubscribe.