AI Models Radarby Mahdi Taghizadeh
Compare releases Verified 25 Sept 2026
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Field
LifecycleGenerally available since 24 Apr 2026Generally available since 10 Sept 2026
ImpactMeaningfulMajor
Change typeDeveloper capabilityModel launch
Capability shiftGeneral · CodingDeepSeek says V4.1 Flash raises the capability ceiling, improves speed and throughput, and adds native multimodal v…
AvailabilityAPIAvailable on the DeepSeek API as deepseek-flash; legacy V4 Flash aliases temporarily route to V4.1 Flash.
Access statusStatus: Tracked · Channel: API · Weights: Closed · Pricing: Unclear · Docs: LinkedStatus: GA · Channel: API · Weights: Closed · Pricing: Unclear · Docs: Linked
Pricing signalNo pricing change found in the indexed note.DeepSeek reduced API pricing with this release; exact rates are published on its pricing page.
Context signalNo context-window change found in the indexed note.No context-window change is stated in the launch note.
ConfidenceInferredConfirmed
Developer capabilityInferred

DeepSeek-V4

ImpactMeaningful
LifecycleGA
Since 24 Apr 2026
ContextunknownAccessAPIWeightsclosedPriceunknownCheckInferred
Availability
StatusTrackedChannelAPIWeightsClosedPricingUnclearDocsLinked
Source qualityProduct changelogStrong source · 1 receipt

Keeps compatibility with both OpenAI- and Anthropic-style interfaces, lowering the cost of switching.

Open radar briefSource
Model launchConfirmed

DeepSeek V4.1 Flash

ImpactMajor
LifecycleGA
Since 10 Sept 2026
ContextlistedAccessAPIWeightsclosedPricevisibleCheckConfirmed
Availability
StatusGAChannelAPIWeightsClosedPricingUnclearDocsLinked
Source qualityLaunch announcementVerified source · 2 receipts

It surpasses DeepSeek V4 Pro in the company’s testing while lowering API pricing and becoming the new Flash endpoint.

Open radar briefSource