Matthew Berman's Hands-On: GPT-6 Astra Is the Best Model He's Used
AI reviewer Matthew Berman published a full hands-on video of GPT-6 Astra (about 13 minutes) on September 4, with a clear verdict: this is the best model he has ever used, and a major leap rather than an incremental upgrade. Commentators like @shaunralston reshared the review, calling it "the most aligned model ever."
Confirmed
- Berman got early access; the review covers benchmark scores, generative demos (Little Planet, Ratstronaut, 7 Island, etc.), games, code, writing, browser control, slide decks, and general knowledge work
- He especially praised its zero-shot prompting performance and sees knowledge work as the model's main battlefield, including slide generation and analysis
- Browser control impressed him
- A Sim City clone project still wasn't finished after running 5 days during the test
Why it matters
- Berman is a leading independent reviewer; his "best model ever" verdict on GPT-6 Astra has been widely reshared in the community and may shape public expectations of the model's capabilities
- The characterization of a "major leap, not incremental" plus the positive notes on knowledge work and browser control offer concrete reference points for interested users; the Sim City project stalling also signals limits remain on complex, long-horizon tasks
2026-09-04 ~ 2026-09-04 · 6 related posts
Primary sources
- [source] MatthewBerman's early GPT-6 Astra review: best model yet, stunning browser control — MatthewBerman · 2026-09-04
- [source] Early-access GPT-6 'Astra' tested: Sim City clone ran 5 days via /goal mode — MatthewBerman · 2026-09-04
- [source] Matthew Berman Puts GPT-6 Astra Through Its Paces: Benchmarks, Demos and Browser Use — Matthew Berman · 2026-09-04
- Third-party review hails GPT-6 Astra as the most aligned model ever, with Matthew Berman's nod — shaunralston · 2026-09-04
- Matthew Berman's GPT-6 Astra review: "best model I've ever used" — shaunralston · 2026-09-04
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