DeepSeek
6 active models · 2 deprecated · Official website →
Active Models
DeepSeek V4.1 Flash
✅ ActiveSmallest model of DeepSeek's new architecture family with native multimodal visual understanding, served under the deepseek-flash API name
DeepSeek V4 Pro
✅ ActiveDeepSeek's next-generation general-purpose model with stronger reasoning, coding, and tool use
DeepSeek V3.1
✅ ActiveEnhanced V3 with better instruction following and reduced hallucinations
DeepSeek V3
✅ Active671B MoE model trained for $5.6M, competing with GPT-4 class models
DeepSeek R1
✅ ActiveOpen-source reasoning model competitive with o1 at fraction of the cost
DeepSeek R1-0528
✅ ActiveUpdated R1 with improved math and coding performance
Deprecated Models
DeepSeek V3.2
⚠️ DeprecatedLatest DeepSeek V3 iteration with improved MoE architecture
DeepSeek V4 Flash
⚠️ DeprecatedLower-latency DeepSeek V4 model for high-throughput chat, coding, and agent workloads; retired in favor of V4.1 Flash
Change History
DeepSeek V4.1 Flash released with a 1M context window, up to 384K output, native vision, and support for both thinking and non-thinking modes; call it via the deepseek-flash model name
API pricing reduced to $0.30 per 1M input tokens and $1.20 per 1M output tokens at peak hours ($0.15 and $0.60 off-peak); cache hits $0.006 per 1M tokens
Planned routing of V4 Pro requests to V4.1 Flash after September 14, 2026 was reversed; V4 Pro remains on the API with unchanged billing
V4 Flash and V4 Flash Vision Exp retired on September 10, 2026; the deepseek-v4-flash and deepseek-v4-flash-vision-exp names are temporarily routed to V4.1 Flash
Experimental multimodal variant DeepSeek-V4-Flash-Vision-Exp released on the API
DeepSeek V4 Pro reached general availability as build 0813 with 1.6T total / 49B active parameters, 1M context, up to 384K output, low/high/max thinking effort, and native Responses API support
Peak/off-peak API pricing introduced from August 16, 2026: $1.32 per 1M input tokens and $3.96 per 1M output tokens at peak hours, half that off-peak
DeepSeek V4 Flash official release (build 0731) entered public beta with open weights under the MIT license, re-post-trained on the same architecture with much stronger agent benchmarks
The deepseek-chat and deepseek-reasoner API names were fully retired on July 24, 2026; use deepseek-flash or deepseek-v4-pro instead
Legacy deepseek-chat and deepseek-reasoner API names, which had pointed to V4 Flash, were discontinued on July 24, 2026
DeepSeek scheduled deepseek-chat and deepseek-reasoner compatibility aliases for retirement on June 15, 2026
DeepSeek V4 Pro released for API access with stronger reasoning, coding, and tool-use performance
Promotional API pricing listed at $0.50 per 1M input tokens and $1.50 per 1M output tokens
DeepSeek V4 Flash released alongside V4 Pro for faster and lower-cost API workloads
Pricing set at $0.14 per 1M input tokens and $0.28 per 1M output tokens
DeepSeek V3.2 released with improved reasoning and efficiency
DeepSeek V3.1 released with improved instruction following
R1-0528 released with significant improvements in math reasoning
DeepSeek R1 released as open-source reasoning model, rivaling o1