DeepSeek launching v4.1 flash cheaper and more capable than v4 pro | Hacker NewsHacker Newsnew | past | comments | ask | show | jobs | submitloginDeepSeek launching v4.1 flash cheaper and more capable than v4 pro35 points by nickweb 50 minutes ago | hide | past | favorite | 3 commentsDSeek plans to officially release the V4.1 Flash model around September 10, 2026 (Beijing Time). After extensive internal and external testing, V4.1 Flash has comprehensively surpassed V4 Pro across all key metrics, including performance, cost, speed, and task completion time. In keeping with our commitment to user responsibility, following the official launch of V4.1 Flash and prior to the release of V4.1 Pro, all requests to the Pro model will be routed to V4.1 Flash and billed at Flash's price. If you encounter any issues during your comparative testing between V4 Pro and V4.1 Flash, please do not hesitate to reach out to us with your feedback. Thank you for your support!We will adjust the pricing for the Flash series effective from 12:00 Beijing Time on September 10, 2026. During off-peak hours, the unit price will be $0.003 for input cache hits, $0.15 for input cache misses, and $0.6 for output. Peak-hour prices will be double the off-peak rates. Please plan your usage accordingly. help

swiftcoder 1 minute ago | next [–]
If they can keep up this cadence of Flash leap-frogging the previous Pro, we're in for a good timereplyoefrha 16 minutes ago | prev | next [–]
Source is apparently a banner announcement on https://platform.deepseek.com/usage. Had me searching for a couple minutes...replyneugls 49 minutes ago | prev [–]
Waiting to use itreply

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DeepSeek is preparing to release the V4.1 Flash model, which is presented as being both cheaper and more capable than the existing V4 Pro model following extensive internal and external testing. The official release date for V4.1 Flash is slated for September 10, 2026, Beijing Time. This new model has demonstrated superiority over V4 Pro across several critical metrics, including overall performance, cost efficiency, processing speed, and task completion times. To manage this transition while prioritizing user responsibility, DeepSeek has established a routing policy: subsequent to the official launch of V4.1 Flash and before the release of V4.1 Pro, all requests directed to the Pro model will be automatically routed to V4.1 Flash and billed at the Flash model's pricing structure. Furthermore, the pricing for the Flash series will be adjusted starting at 12:00 Beijing Time on September 10, 2026. The pricing structure is tiered based on usage time, differentiating between off-peak and peak hours. During off-peak hours, the pricing for input cache hits is set at $0.003, input cache misses at $0.15, and output at $0.6. Peak-hour rates will be double these off-peak rates, necessitating careful planning regarding usage schedules. This competitive leap-frogging of the previous Pro model suggests a continued focus by DeepSeek on iterative performance and cost optimization in their model development cycle.