DeepSeek · Released 2026-09-10
Native image understanding connects to files and tools; official effort curves show the gains and costs of more reasoning.
Original model explanation ↗39points
Intelligence Index
Rank 12 among included models
max
Each model uses its highest tested setting on the source page, with fallback conditions retained; scores come from one evaluator.
Source read · · v4.3
Source evaluation & rankings ↗Vendor evaluation explained
Version history
The V4 family reaches the API with Pro and Flash offering different capability and resource trade-offs; older request names temporarily map to Flash.
Original release ↗The architecture and size stay unchanged while post-training and Responses API support advance; this update applies only to the Flash API, not Pro or the web model.
Original release ↗Pro reaches general availability in the app, web and API with Responses API support and more flexible thinking effort; its request name stays unchanged.
Original release ↗A separate experimental vision model adds image understanding to Flash; V4.1 Flash later succeeds it.
Original release ↗Native multimodal Flash is released; legacy Flash API names temporarily route to the new model while Pro remains available.
Original release ↗