DeepSeek-V3.1 Release
Introducing DeepSeek-V3.1: our first step toward the agent era! 🚀
-
🧠 Hybrid inference: Think & Non-Think — one model, two modes
-
⚡️ Faster thinking: DeepSeek-V3.1-Think reaches answers in less time vs. DeepSeek-R1-0528
-
🛠️ Stronger agent skills: Post-training boosts tool use and multi-step agent tasks
Try it now — toggle Think/Non-Think via the "DeepThink" button: https://chat.deepseek.com/
API Update ⚙️
-
🔹 deepseek-chat → non-thinking mode
-
🔹 deepseek-reasoner → thinking mode
-
🧵 128K context for both
-
🔌 Anthropic API format supported: https://api-docs.deepseek.com/guides/anthropic_api
-
✅ Strict Function Calling supported in Beta API: https://api-docs.deepseek.com/guides/tool_calls
-
🚀 More API resources, smoother API experience
Tools & Agents Upgrades 🧰
-
📈 Better results on SWE / Terminal-Bench
-
🔍 Stronger multi-step reasoning for complex search tasks
-
⚡️ Big gains in thinking efficiency
Model Update 🤖
-
🔹 V3.1 Base: 840B tokens continued pretraining for long context extension on top of V3
-
🔹 Tokenizer & chat template updated — new tokenizer config: https://huggingface.co/deepseek-ai/DeepSeek-V3.1/blob/main/tokenizer_config.json
-
🔗 V3.1 Base Open-source weights: https://huggingface.co/deepseek-ai/DeepSeek-V3.1-Base
-
🔗 V3.1 Open-source weights: https://huggingface.co/deepseek-ai/DeepSeek-V3.1
Pricing Changes 💳
-
🔹 New pricing starts & off-peak discounts end at Sep 5th, 2025, 16:00 (UTC Time)
-
🔹 Until then, APIs follow current pricing
-
📝 Pricing page: https://api-docs.deepseek.com/quick_start/pricing/
