Model comparison
DeepSeek V4.1 Flash vs DeepSeek-V4-Flash-Vision-Exp
- Input
- $0.15
- Output
- $0.60
- Context
- 1M tokens
- Released
- 2026-09-10
- Input
- $0.22 off-peak · $0.44 peak
- Output
- $0.66 off-peak · $1.32 peak
- Context
- 1M
- Released
- 2026-08-21
DeepSeek V4.1 Flash scores higher on 2 of the 2 benchmarks both models report; DeepSeek V4.1 Flash is cheaper on input tokens ($0.2 vs $0.2 per 1M, 1.5×).
Specs and pricing side by side
| Spec | DeepSeek V4.1 Flash | DeepSeek-V4-Flash-Vision-Exp |
|---|---|---|
| Maker | DeepSeek | DeepSeeksame |
| Released | 2026-09-10 | 2026-08-21 |
| Context window | 1M tokens | 1M |
| Max output | not published | 384K |
| Input price | $0.15 | $0.22 off-peak · $0.44 peak |
| Output price | $0.60 | $0.66 off-peak · $1.32 peak |
| Parameters | 552B backbone + 196B Engram · 8B active on prefill, 16B on decode | not published |
| License | MIT | MITsame |
| Weights | Open weights | Open weightssame |
| Modalities | Text, Vision | Text, Visionsame |
Not published by either maker: knowledge cutoff.
Benchmarks both models report
| Benchmark | DeepSeek V4.1 Flash | DeepSeek-V4-Flash-Vision-Exp |
|---|---|---|
| Terminal-Bench 2.1 | 90.6% | 83.9% |
| CyberGym | 88.1% | 75.3% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick DeepSeek V4.1 Flash if…
- You care about Terminal-Bench 2.1, CyberGym (it scores higher on 2 shared benchmarks).
- Cost matters: input tokens cost 1.5× less ($0.2 vs $0.2 per 1M).
- Your use case is: agentic coding and terminal work where the published Terminal-Bench and DeepSWE scores matter.
Pick DeepSeek-V4-Flash-Vision-Exp if…
- Your use case is: multimodal agent loops that must read screenshots, dashboards or UI state to decide the next action.
FAQ
Which is better, DeepSeek V4.1 Flash or DeepSeek-V4-Flash-Vision-Exp?
DeepSeek V4.1 Flash scores higher on 2 of the 2 benchmarks both models report; DeepSeek V4.1 Flash is cheaper on input tokens ($0.2 vs $0.2 per 1M, 1.5×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash: $0.15 input, $0.60 output. DeepSeek-V4-Flash-Vision-Exp: $0.22 off-peak · $0.44 peak input, $0.66 off-peak · $1.32 peak output (list API prices as published by each maker).
What are the context windows of DeepSeek V4.1 Flash and DeepSeek-V4-Flash-Vision-Exp?
DeepSeek V4.1 Flash offers 1M tokens; DeepSeek-V4-Flash-Vision-Exp offers 1M with up to 384K output.
Is DeepSeek V4.1 Flash newer than DeepSeek-V4-Flash-Vision-Exp?
DeepSeek V4.1 Flash was released 2026-09-10; DeepSeek-V4-Flash-Vision-Exp was released 2026-08-21.
Go deeper
- DeepSeek V4.1 Flash: full specs, pricing and benchmarks
- DeepSeek-V4-Flash-Vision-Exp: full specs, pricing and benchmarks
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