--- title: "DeepSeek: DeepSeek V4.1 Flash — unrated, priced in this catalogue · Undominated.ai" canonical: https://undominated.ai/models/deepseek__deepseek-v4.1-flash/ description: "DeepSeek: DeepSeek V4.1 Flash: $0.150/M in, $0.600/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero." --- # DeepSeek: DeepSeek V4.1 Flash — unrated, priced in this catalogue · Undominated.ai > DeepSeek: DeepSeek V4.1 Flash: $0.150/M in, $0.600/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero. MODEL PROOF # DeepSeek V4.1 Flash DeepSeek · 10 Sept 2026 Balanced Summarise Chat Code gen Agentic NOT INDEPENDENTLY RATED ## No independent LMArena score is published for this model. **$0.263** / 1M tokens Balanced · 3 tokens in per 1 out Independent LMArena score Not independently rated Context window 1.05M Maximum output 384K Input modalities text, image Output modalities text Published input price $0.150 / 1M tokens Published output price $0.600 / 1M tokens Pricing kind fixed Evidence as of 19 Sept 2026 openrouter/models Copy link Share Download landscape card MODEL MONUMENT ## Save or share this proof DeepSeek: DeepSeek V4.1 Flash. Balanced workload. Not independently rated. Evidence as of 19 Sept 2026. Download landscape card — 1200 by 630 pixels Download square card — 1080 by 1080 pixels Copy landscape image Share landscape card $0.150/M in, $0.600/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. DeepSeek V4.1 Flash has no independent quality score. Unrated is not a score of zero. ### Every price dimension | Input | $0.150 /M | | --- | --- | | Output | $0.600 /M | | Cached input | $0.0030 /M | **Price varies by time of day.** ### Who sells it The same weights, different shops. Cheapest is not like-for-like when serving precision differs. Headline cheapest is a lower precision. Like-for-like at the best declared precision is $0.140/M from DeepInfra. | Seller | Input | Output | Precision | Uptime (1d) | | --- | --- | --- | --- | --- | | Seller Relace | Input $0.130 | Output $0.520 | Precision fp4 | Uptime (1d) 99.78% | | Seller Morph | Input $0.135 | Output $0.540 | Precision undeclared | Uptime (1d) 99.69% | | Seller DeepInfra | Input $0.140 | Output $0.420 | Precision fp8 | Uptime (1d) 99.81% | | Seller Alibaba | Input $0.150 | Output $0.600 | Precision undeclared | Uptime (1d) 99.96% | | Seller DeepSeek | Input $0.150 | Output $0.600 | Precision undeclared | Uptime (1d) 99.99% | | Seller Sail Research | Input $0.200 | Output $0.600 | Precision fp4 | Uptime (1d) 99.90% | | Seller Wafer | Input $0.200 | Output $0.600 | Precision undeclared | Uptime (1d) 99.75% | | Seller Fireworks | Input $0.220 | Output $0.660 | Precision undeclared | Uptime (1d) 99.71% | | Seller StreamLake | Input $0.282 | Output $1.13 | Precision fp8 | Uptime (1d) 99.55% | | Seller GMICloud | Input $0.285 | Output $1.14 | Precision fp8 | Uptime (1d) 99.86% | | Seller Novita | Input $0.285 | Output $1.14 | Precision fp8 | Uptime (1d) 99.87% | | Seller AtlasCloud | Input $0.300 | Output $1.20 | Precision fp8 | Uptime (1d) 99.85% | | Seller BaseTen | Input $0.300 | Output $1.20 | Precision fp8 | Uptime (1d) 99.98% | | Seller SiliconFlow | Input $0.300 | Output $1.20 | Precision fp8 | Uptime (1d) 96.91% | | Seller Parasail | Input $0.300 | Output $1.20 | Precision fp8 | Uptime (1d) 96.04% | | Seller Makora | Input $0.300 | Output $1.20 | Precision undeclared | Uptime (1d) 97.90% | | Seller DigitalOcean | Input $0.300 | Output $1.20 | Precision undeclared | Uptime (1d) 99.11% | | Seller Together | Input $0.300 | Output $1.20 | Precision undeclared | Uptime (1d) 99.95% | | Seller Modal | Input $0.300 | Output $1.20 | Precision undeclared | Uptime (1d) 99.92% | | Seller Phala | Input $0.345 | Output $1.38 | Precision undeclared | Uptime (1d) 99.74% | | Seller Venice | Input $0.375 | Output $1.50 | Precision fp8 | Uptime (1d) 99.85% | ### Independent scores No independent benchmark has measured this model. Unrated is not a score of zero. ### Capability | Context window | 1.0M | | --- | --- | | Max output | 384K | | Input modes | text, image | | Tool use | yes | | Reasoning | optional | ### Provenance | Price source | openrouter.ai | | --- | --- | | Fetched | 2026-09-19 | | Quality data | unrated | DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on... ## Questions this page answers ### What does DeepSeek V4.1 Flash cost? $0.150/M in, $0.600/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. ### Does DeepSeek V4.1 Flash have an independent quality score? DeepSeek V4.1 Flash has no independent quality score in this catalogue. Unrated is not a score of zero. ### What beats DeepSeek V4.1 Flash? DeepSeek V4.1 Flash has no independent quality score. Unrated is not a score of zero. ### Does this page use Artificial Analysis scores for DeepSeek V4.1 Flash? No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated. [Check whether this is still the one to buy](/check/deepseek__deepseek-v4.1-flash/) ## Related No independent quality score, so there is no dominator to name. Unrated is not a clean bill of health. - Same vendor [DeepSeek V4 Pro 0423](/models/deepseek__deepseek-v4-pro/) - DeepSeek models [DeepSeek](/providers/deepseek/) - Where this model appears [spreads](/spreads/) - Same vendor [DeepSeek V4 Flash 0423](/models/deepseek__deepseek-v4-flash/) - Where this model appears [traps](/traps/) - Same vendor [R1 0528](/models/deepseek__deepseek-r1-0528/) ## Badge The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not. Markdown Copy [![DeepSeek V4.1 Flash — Undominated.ai dominance verdict](https://undominated.ai/badge/deepseek__deepseek-v4.1-flash.svg)](https://undominated.ai/models/deepseek__deepseek-v4.1-flash/) HTML Copy DeepSeek V4.1 Flash — Undominated.ai dominance verdict Direct file: [https://undominated.ai/badge/deepseek__deepseek-v4.1-flash.svg](https://undominated.ai/badge/deepseek__deepseek-v4.1-flash.svg) — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never older than the last deploy.