open-weight-models news, stories and analysis

Dumbbell chart of AI model price cuts in the AI model price war: Luna input $1.00 to $0.20, Luna output $6.00 to $1.20, Opus 5 input $10.00 to $5.00, Opus 5 output $50.00 to $25.00

AI model price war: US labs cut mid-tier as China closes gap

AI model price war cut US token prices 25% since mid-July. OpenAI slashed Luna 80%, Anthropic halved Opus 5 vs Fable 5, as Chinese rivals close the gap.

Lars Cornelissen · Aug 15, 2026

Radar chart comparing Geoffrey Hinton, Andrew Ng, and Fei-Fei Li on five dimensions of the open-weight debate: openness advocacy, risk concern, regulation support, China concern, and acceptance of permanence. Hinton scores 9 on risk concern and 10 on acceptance. Ng scores 9 on openness and 9 on China concern. Li scores 7 on openness and 5 on risk concern.

AI

Open-weight AI models: Hinton says the battle is lost

Open-weight AI models are now permanent, three AI pioneers agreed at Ai4. Hinton conceded the battle is lost while Ng and Li called for openness with nuance.

Lars Cornelissen · Aug 13, 2026

Line chart showing the performance gap between top open-weight and closed AI models shrinking from 8 to under 2 percentage points

Data

Open-weight models closed the gap to 1.7 points

Open-weight models went from a budget compromise to a default choice. On some benchmarks the gap to the best closed models shrank from 8 points to 1.7 in a year.

Lars Cornelissen · May 15, 2026

Two rising lines showing frontier capability and consumer-hardware capability, with the consumer line trailing by about eight months

AI

Last year's frontier model now runs on a laptop

Frontier AI capability reaches consumer hardware in about eight months. The shrinking gap turns today's hosted-only features into tomorrow's on-device default.

Lars Cornelissen · May 12, 2026