DeepSeek has released V4 Pro via API on OpenRouter, with open weights now available on Hugging Face (1.7T parameters, 893 GB). The post notes interesting variation in model outputs across different reasoning levels and shares benchmark data that circulated through unofficial channels.
Background
DeepSeek is a Chinese AI lab known for cost-effective large language models. This release adds to their V4 series following the April V4 Pro and July V4 Flash models.
- Source
- Simon Willison
- Published
- Aug 13, 2026 at 07:59 AM
- Score
- 7.0 / 10