DeepSeek 4.1 Flash
A lightweight large language model released by DeepSeek. It employs a CSA2 architecture to achieve highly compressed KV caching, supports native visual understanding, and is characterized by high-speed inference and low-cost deployment.
Core Facts
Timeline (last 90 days)
DeepSeek 4.1 Flash and Gemini 4 Argon are two large models released in the same period.
Of the six tasks, DeepSeek 4.1 Flash and Gemini 4 Argon each won three; DeepSeek was superior in Subway Surfers, 3D world generation and complex scene building, while Gemini performed better in the boss battle, text animation pacing and storyboard narrative animation.
In the fifth task, a 15-second 3D text animation, the creator said he preferred the modeling texture of DeepSeek 4.1 Flash, while Gemini 4 Argon performed better on musical rhythm and animation pacing.
In the fourth task, complex scenes and NPC behavior planning, the DeepSeek 4.1 Flash version was rich in detail: cars waiting at red lights, sidewalks following traffic-light logic, NPCs that can be clicked to follow the view and each with different names, and relatively high modeling quality, with only the streetlights slightly tilted.
In the third task, generating an explorable 3D world from a photo, DeepSeek 4.1 Flash had high fidelity, with excellent maple leaf paper-cutout modeling and falling-leaf texture, but building interiors were empty shells.
In the second task, a 3D boss battle game, the DeepSeek 4.1 Flash version had a minor bug where the character automatically rolled back after rolling, the boss modeling resembled the style of "Guobao Te Gong", and the second-phase skills triggered normally.
In the first task, a 3D Subway Surfers clone, the version generated by DeepSeek 4.1 Flash ran smoothly, with jumping, left-right movement, sliding and other operations free of bugs, and building modeling detail on par with the previous generation V4 Pro.
Bilibili creator "Genius Frog" released the second episode of the "Who Is the Strongest Large Model Series" hands-on test video, comparing DeepSeek 4.1 Flash and Gemini 4 Argon on six tasks across three directions: 3D game development, 3D scene generation and video generation.
In the chess game comparison, the version generated by Opus 5.5 was clearly superior to Gemini 4 Argon's version in animation smoothness, scene lighting, and sound effect coordination, and could automatically generate cinematic replays of the match's highlight moments.
Among the 38 free models, only 4 are suitable for writing code: GLM5.3, DeepSeek 4.1 Flash, Nemotron 3 Ultra, and Poolside Laguna XS 2.1.
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All Facts (15)
DeepSeek has released an experimental multimodal model, DeepSeek V4 Flash Vision EXP, which performs excellently in both text and multimodal tasks.
90%UnverifiedDeepSeek 4.1 Flash and Gemini 4 Argon are two large models released in the same period.
60%UnverifiedIn the third task, generating an explorable 3D world from a photo, DeepSeek 4.1 Flash had high fidelity, with excellent maple leaf paper-cutout modeling and falling-leaf texture, but building interiors were empty shells.
50%UnverifiedIn the fourth task, complex scenes and NPC behavior planning, the DeepSeek 4.1 Flash version was rich in detail: cars waiting at red lights, sidewalks following traffic-light logic, NPCs that can be clicked to follow the view and each with different names, and relatively high modeling quality, with only the streetlights slightly tilted.
50%UnverifiedOf the six tasks, DeepSeek 4.1 Flash and Gemini 4 Argon each won three; DeepSeek was superior in Subway Surfers, 3D world generation and complex scene building, while Gemini performed better in the boss battle, text animation pacing and storyboard narrative animation.
50%UnverifiedIn the fifth task, a 15-second 3D text animation, the creator said he preferred the modeling texture of DeepSeek 4.1 Flash, while Gemini 4 Argon performed better on musical rhythm and animation pacing.
50%UnverifiedIn the first task, a 3D Subway Surfers clone, the version generated by DeepSeek 4.1 Flash ran smoothly, with jumping, left-right movement, sliding and other operations free of bugs, and building modeling detail on par with the previous generation V4 Pro.
50%UnverifiedIn the second task, a 3D boss battle game, the DeepSeek 4.1 Flash version had a minor bug where the character automatically rolled back after rolling, the boss modeling resembled the style of "Guobao Te Gong", and the second-phase skills triggered normally.
50%UnverifiedIn the chess game comparison, the version generated by Opus 5.5 was clearly superior to Gemini 4 Argon's version in animation smoothness, scene lighting, and sound effect coordination, and could automatically generate cinematic replays of the match's highlight moments.
50%UnverifiedAmong the 38 free models, only 4 are suitable for writing code: GLM5.3, DeepSeek 4.1 Flash, Nemotron 3 Ultra, and Poolside Laguna XS 2.1.
50%UnverifiedDeepSeek officially stated that 4.1 Flash adopts a new architectural design, making inference faster and more efficient.
50%UnverifiedDeepSeek 4.1 Flash consumes a large number of tokens, and the cost advantage brought by its small KV cache is partially offset by the high token consumption.
50%UnverifiedDeepSeek 4.1 Flash adopts an encoder-decoder architecture, where the encoder creates a shared global memory and the decoder reads information from it.
50%UnverifiedBilibili creator "Genius Frog" released the second episode of the "Who Is the Strongest Large Model Series" hands-on test video, comparing DeepSeek 4.1 Flash and Gemini 4 Argon on six tasks across three directions: 3D game development, 3D scene generation and video generation.
50%UnverifiedThe OpenCode platform doubled the quota for GLM 5.3 Flash, integrated DeepSeek 4.1 Flash, and then offered 4× usage for the following 72 hours.
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