DeepSeek Releases V4 Pro
DeepSeek officially released V4 Pro, featuring a MoE architecture with 1.6T to 1.7T total parameters and 49B active parameters. Its inference FLOPs are only 27% of V3.2. The model is open-sourced under the MIT license with API pricing about 1/31 of GPT-5.6. It scored close to GPT-5.6 in the LMArena Code Arena and is now available on Baseten.Confirmed- The model uses a MoE architecture with 1.6T-1.7T total parameters and 49B active parameters; inference cost is only 27% of V3.2.- The model is open-sourced under the MIT license and supports zero data retention (ZDR) by default.- It scored 1607 in the LMArena Code Arena WebDev AutoEval, only 15 points lower than GPT-5.6 Sol xHigh.- Baseten launched the model API on Day 0.- The model natively supports the Responses API and features advanced agent capabilities.Why it mattersThis model challenges closed-source flagships with extremely low pricing and an open-source strategy. Its performance approaches GPT-5.6, significantly reducing the inference cost of high-performance models.
2026-08-13 ~ 2026-08-14 · 5 related posts
- Episode 1: DeepSeek V4 Pro Launch Imminent, API and Timeline Leaked(2026-08-11, 5 posts)
- Episode 2: DeepSeek V4 Specs and Pricing Leak Spark Debate(2026-08-11, 5 posts)
- Episode 3: DeepSeek launches V4-Pro with peak pricing, API price hike sparks debate(2026-08-12, 62 posts)
- Episode 4: DeepSeek V4 Pro Released and Potentially Withdrawn Due to Wrong Version(2026-08-13, 18 posts)
- Episode 5: DeepSeek Releases V4 Pro(2026-08-13, 5 posts)
- Episode 6: DeepSeek Hikes V4 API Prices Up to 1100% Against the Trend, Adds Peak/Off-Peak Billing(2026-08-15, 5 posts)
- Episode 7: DeepSeek Hikes V4 API Prices Up to 1100%, Introduces Peak/Off-Peak Pricing(2026-08-17, 5 posts)
Primary sources
- DeepSeek-V4-Pro Leak: Nears GPT-5.6 in Coding Benchmark at 1/31st the Price — rohanpaul_ai · 2026-08-13
- [source] DeepSeek V4 Pro Hits Baseten APIs: 1.7T Parameters, MIT License — baseten · 2026-08-14
- DeepSeek officially launches V4 Pro with advanced agentic capabilities and native Responses API support — emmanuelvivier · 2026-08-14
- [source] DeepSeek-V4-Pro launches: 1.6T-param MoE cuts inference FLOPs to 27% of V3.2 — AccBalanced · 2026-08-14
1 near-duplicate retellings: eyishazyer