Gemini 4 Hydrogen
Scores 51 on Artificial Analysis's index, level with the dearer Gemini 4 Argon (50), at $1.50 in and $7.50 out per million tokens: 25% under Argon and Carbon today and 62.5% under them from 1 December.
Key facts
- Score
- 69 / 100, rank #9Tests78Price42Peoplen/aFit100
- Price
- $1.50 to read · $7.50 to write, per 1M tokens (Google: Introducing Gemini 4 Hydrogen)
- Typical mix
- $3 per 1M tokens (three parts reading to one part writing)
- Reads at once
- 1M tokens (about 750,000 words)
- Where you can get it
- Gemini Enterprise Agent Platform (Google Cloud), Google AI Studio, Gemini for business, Gemini Enterprise, Gemini app
- Host it yourself
- No
- Released
- Nov 12, 2026
- Best for
- Everyday drafting and summarising, Spreadsheet models and forecasts in Google Sheets, First-pass tax and finance research, checked by a person, Multi-step tasks across Gmail and Drive
Gemini 4 Hydrogen costs $1.50 per million tokens it reads (input) and $7.50 per million tokens it writes (output) on Google's list price (Google: Introducing Gemini 4 Hydrogen, read Nov 13, 2026). A token is about three-quarters of a word. See what every model costs for the same job.
Independent tests
| Test | Result | Who ran it | Read |
|---|---|---|---|
| Artificial Analysis Intelligence Index (high) | 51 | Artificial Analysis LLM leaderboard | Nov 13, 2026 |
| Vals Finance Index | 66.14% (rank 2) | Vals AI: Vals Finance Index | Nov 13, 2026 |
| Vals Tax Agent Bench | 52.30% (rank 1) | Vals AI: Tax Agent Bench | Nov 13, 2026 |
| Vals Legal Research Bench | 53.85% (rank 6) | Vals AI: Legal Research Bench | Nov 13, 2026 |
What a job costs
The cost of doing each job 1,000 times on Gemini 4 Hydrogen, worked out from Google’s list price and a fixed size for each job. A product built on the model charges its own price on top.
| 1,000 of these | What one job means | Cost |
|---|---|---|
| Support replies | the customer message, the account notes and two help articles read; a 300-word reply written | $7.50 |
| Documents processed | a two-page invoice or form read; the fields pulled out | $5.25 |
| Calls summarised | a 40-minute call transcript read; a summary and next steps written | $20 |
| Contracts reviewed | a 40-page contract read against a checklist; a memo of issues written | $56 |
| Drafts written | a brief and one example read; a 600-word email or proposal section written | $8.25 |
What people running it say
On the Hacker News (a developer forum) launch thread, 534 upvotes, most comments are about Google's model names. On substance: modeless reads Google's charts as 'a better choice than Sonnet in areas outside of coding'; onlyrealcuzzo calls early results 'disappointing', reporting it does more than asked; ComputerGuru notes it costs more than anyone pays for 3.8 Flash today. Developers on day one, none verified, and too little to score.
Caveats
- Released 12 November 2026: one independent test counts toward its score so far. Vals AI's tax, legal and finance tests are recorded below but not yet scored, because fewer than three models on this board carry them.
- Google sells it as the successor to Gemini 3.8 Flash, but it costs twice what 3.8 Flash does until 1 January 2027, when Google's pricing page says 3.8 Flash rises to the same $1.50 in / $7.50 out per million tokens.
- On Vals AI's tax test it ranks first with 52.3% of questions right, so close to half its answers there were wrong: a person still checks the output.
- In Gemini Enterprise it is switched off until an administrator turns it on, per Google Cloud's release notes. Google does not say which Gemini app plans get it or whether it becomes the default in Gemini for business.
Questions people ask
How much does Gemini 4 Hydrogen cost?
Gemini 4 Hydrogen costs $1.50 per million tokens it reads (input) and $7.50 per million tokens it writes (output) on Google's list price (Google: Introducing Gemini 4 Hydrogen, read Nov 13, 2026). A token is about three-quarters of a word.
What does Gemini 4 Hydrogen cost for 1,000 support replies?
About $7.50 at Google's list price, counting one reply as the customer message, the account notes and two help articles read; a 300-word reply written. On the same basis: $5.25 for 1,000 documents processed, $20 for 1,000 calls summarised, $56 for 1,000 contracts reviewed, $8.25 for 1,000 drafts written. A product built on Gemini 4 Hydrogen charges its own price on top.
How good is Gemini 4 Hydrogen?
Gemini 4 Hydrogen ranks #9 of 34 on the Models at Work leaderboard with a score of 69 out of 100 (November 2026 edition). Scores 51 on Artificial Analysis's index, level with the dearer Gemini 4 Argon (50), at $1.50 in and $7.50 out per million tokens: 25% under Argon and Carbon today and 62.5% under them from 1 December.
What is Gemini 4 Hydrogen best for?
Gemini 4 Hydrogen is best for everyday drafting and summarising, spreadsheet models and forecasts in google sheets, first-pass tax and finance research, checked by a person, multi-step tasks across gmail and drive.
How does Gemini 4 Hydrogen do on independent tests?
Artificial Analysis Intelligence Index (high): 51 (Artificial Analysis LLM leaderboard); Vals Finance Index: 66.14% (rank 2) (Vals AI: Vals Finance Index); Vals Tax Agent Bench: 52.30% (rank 1) (Vals AI: Tax Agent Bench); Vals Legal Research Bench: 53.85% (rank 6) (Vals AI: Legal Research Bench).
How much can Gemini 4 Hydrogen read at once?
Gemini 4 Hydrogen can take in 1M tokens (about 750,000 words) in one go, according to Google. Vendors call this the context window.
Where can a business get Gemini 4 Hydrogen?
Gemini 4 Hydrogen is available through Gemini Enterprise Agent Platform (Google Cloud), Google AI Studio, Gemini for business, Gemini Enterprise, Gemini app.
Can a company host Gemini 4 Hydrogen itself?
No. Gemini 4 Hydrogen is not released for self-hosting; it is available through Google and the products and clouds that carry it.
Compare Gemini 4 Hydrogen
- Gemini 4 Hydrogen vs Gemini 4 Carbon
- Gemini 4 Hydrogen vs Claude Haiku 5.5
- Gemini 4 Hydrogen vs Claude Fable 5.2
- Gemini 4 Hydrogen vs Claude Opus 5.5
- Gemini 4 Hydrogen vs GPT-6.1 Sol
- Gemini 4 Hydrogen vs Gemini 4 Argon
- Gemini 4 Hydrogen vs Claude Sonnet 5.5
- Gemini 4 Hydrogen vs Gemini 3.8 Flash
- Gemini 4 Hydrogen vs GPT-6.1 Terra
- Gemini 4 Hydrogen vs Gemini 3.5 Flash-Lite
- Gemini 4 Hydrogen vs Gemma 4 31B
How the score works: Score is 0 to 100 and computed, not typed. 40% is independent testing (Artificial Analysis, Arena, Scale, Epoch, Vals and others; each test is scaled against the best score on this board, and tests of real work, such as finished freelance projects or professional tasks, count double the exams). 30% is price: the vendor's list price for a typical mix of reading and writing, on a fixed scale from $0.05 to $60 per million tokens, so a model that costs a fifth as much gains real ground. 15% is what people report after running it, from Signals and linked threads. 15% is fit: how much text it can take in at once and where a business can get it (the products and clouds that carry it), with a small credit for open weights. A missing component drops out and the rest are reweighted. A model with no independent test yet is provisional and ranks below every measured one. Within three points is a tie. Vendor-published figures are labelled and never counted. Our coverage: read the article.