New on the radar: Gemini 4 Hydrogen appeared in models.dev (edenai)

Our hourly sweep found an id that was not there an hour ago.

Catalog id: edenai/vertex/gemini-4-hydrogen@us
Listed price: $1.5/$7.5 per 1M
Context window: 1,048,576 tokens
First observed by our sweep: 2026-11-13 01:34 UTC
Source: models.dev (edenai)

This entry is machine-written from what the sweep actually read, and nothing else. A catalog listing is a primary source for exactly one narrow fact — that this id now exists, at this price, with this context window — and it is not evidence of anything beyond that. It does not tell you the model is good, that the listing is intentional, that the weights are open, or that the vendor has announced it. Those questions need a human and an editor's judgement, and this item deliberately does not answer them.

It maps to Gemini 4 Hydrogen, already on our watchlist — registry note: live — Nov 12 · GA on the Gemini API as gemini-4-hydrogen (Google's release notes, Nov 12), free tier and paid tier, also in Google AI Studio and the default model for the Antigravity agent in Gemini Managed Agents · $1.50 / $7.50 per 1M, $0.075 cached (implicit caching only); Batch and Flex $0.75 / $3.75; Priority $2.70 / $13.50 · no introductory discount: the same as the SKU rows Google Cloud listed at 08:50 UTC · 1M unified context; 65,536 max output by default, up to 1M with long decode · text, image, video, audio and PDF in, text out · thinking levels low, medium, high (default) and a new xhigh · Google calls Gemini 3.8 Flash its 'previous-generation Flash model' ($0.75 / $3.75 intro through Dec 31, $1.50 / $7.50 from Jan 1) · our sweep fired at 17:46 UTC · before launch: codename reported since Oct 27, Business Insider (Nov 11) on staff testing, billing SKUs Nov 12 08:50 UTC · Nov 12 18:50 UTC: 54 on Artificial Analysis' Intelligence Index (Gemini 4 Hydrogen (Xhigh)), above Gemini 4 Argon (50) and GPT-6.1 Terra (51), one point under Claude Sonnet 5.5 (55); 54.3% on CursorBench at High, 12th of its listed settings.