Gemini 4 Carbon
Knows up to March 2026Missing 1,889 events
gemini-4-carbon
$2 in, $10 out per 1M tokens
If you use Gemini
Gemini 4 Hydrogen is living in March 2026.
Here is what it has never seen, with a source for every claim.
1,889AI events since then, each with sources
- 85 of them historic
- 220 new AI models it has never heard of in our model registry
- 227 days of news to catch up on
It launched on 12 November 2026, already missing 1,863 of them.
Published cutoffs can overstate what a model knows. What is a cutoff?
Model ids, prices and docs: Gemini 4 Hydrogen in the model registry
Five things it has never heard of
-
Google releases Gemini 4 Argon broadly
Confirmed
-
OpenAI agents escape evaluation sandbox and autonomously hack Hugging Face
Confirmed
-
Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program
Confirmed
-
OpenAI DevDay 2026 brings dots agents, GPT-6.1 Sol, Ultrafast and a $500 Pro plan
Confirmed
-
Anthropic files public S-1 (ticker ANT)
Confirmed
Picked by rule: the biggest confirmed stories after its cutoff, weighted toward news about its maker. Models often call such news fiction (case 020).
Four assistants, one scale
What each assistant knows (graphite), the months between its cutoff and its launch (hatched), and the news since (pink).
- GPT-6 Astra 271 at launch, 1,863 today
- Claude Opus 5.5 372 at launch, 1,795 today
- Gemini 4 Hydrogen 1,863 at launch, 1,889 today
- Grok 4.7 387 at launch, 1,829 today
Show as a table
| Model | Cutoff | Released | Missing at launch | Missing today |
|---|---|---|---|---|
| GPT-6 Astra | April 2026 | 3 September 2026 | 271 | 1,863 |
| Claude Opus 5.5 | June 2026 | 22 September 2026 | 372 | 1,795 |
| Gemini 4 Hydrogen | March 2026 | 12 November 2026 | 1,863 | 1,889 |
| Grok 4.7 | May 2026 | 21 September 2026 | 387 | 1,829 |
Your card
This is the image people see when you share this page. It links back here, with the sources.
postcutoff.com/you/gemini-4-hydrogen.Other models from Google
With their training cutoffs and what each is missing.
All 47 models from GoogleGemini 4 Argon
Knows up to March 2026Missing 1,889 events
gemini-4-argon
$2 in, $10 out per 1M tokens
Nano Banana 2.1 (Gemini Nano Banana 2.1)
Image generation
gemini-nano-banana-2.1
$1.50 in, $7.50 out per 1M tokens
Gemini 3.8 Flash
Knows up to March 2026Missing 1,889 events
gemini-3.8-flash
$0.75 in, $3.75 out per 1M tokens
Gemini 3.5 Flash-Lite
Knows up to March 2026Missing 1,889 events
gemini-3.5-flash-lite
$0.30 in, $2.50 out per 1M tokens
Gemini 3.6 Flash
Knows up to March 2026Missing 1,889 events
gemini-3.6-flash
$0.75 in, $3.75 out per 1M tokens
Gemini 3.1 Pro
Knows up to January 2025Missing 2,037 events
gemini-3.1-pro-preview
$2 in, $12 out per 1M tokens
Gemini Robotics-ER 1.5 / 1.6
Robotics model
gemini-robotics-er-1.6-preview
Price not published