Vishal Seelam

Founding eng · 2x founder. Exiting times...

[Vishal Seelam @vishalseelam]

@bcherny the tide keeps rising. I barely reach for the lower tiers anymore. Opus is starting to feel like the new Sonnet and Fable the new Opus... what’s even left for the next Opus?

[Vishal Seelam @vishalseelam]

@alexalbert__ what does “it just works” actually look like? does it choose the right path from the start, or go down the wrong one and recover without you stepping in?

[Vishal Seelam @vishalseelam]

benchmarks are defined by policy now. same model, different safeguards, 5 points apart

[Claude @claudeai]

Across our benchmarks, the model sets a new standard.

It scores 52.6% on Terminal-Bench-Science 0.1, more than double Fable 5. On Terminal-Bench 4.0, it scores 55.8% against 42.0% for Fable 5.

[Vishal Seelam @vishalseelam]

@DanDr1s fable 5.1 with 17% reduction in weekly limits?!