DeepSeek V4.1 Flash
FeaturedTops our lineup on DeepSWE, matches GLM 5.3 on the Intelligence Index, runs fast, and reads images: our pick for everyday agentic coding. If a very long run loops or a tool call fails, restart the run; for the hardest long-horizon tasks, use GLM 5.3.
- Price per 1M tokens
- $0.15 in$0.60 out
- $0.028 cache read
- Context
- 1M
- 384K max output
- Vision
- Tool calling
- Reasoning optional, default high
How it ranks
Against every model we serve, best first. Starred scores are reported by the publisher on its model card; the rest are independent measurements. About the scores
- DeepSeek V4.1 Flash45
- GLM 5.345
- Kimi K344
- GLM 5.3 Flash42
- DeepSeek V4 Flash34
- Qwen3.6 35B A3B18
- DeepSeek V4.1 Flash77%* reported by the publisher
- GLM 5.369%
- Kimi K368.5%
- GLM 5.3 Flash63.4%
- DeepSeek V4 Flash54.4%* reported by the publisher
Not published: Qwen3.6 35B A3B.
- DeepSeek V4.1 Flash90.6%* reported by the publisher† measured before the 1017 update
- Kimi K385%
- GLM 5.3 Flash84.3%
- GLM 5.383.9%
- DeepSeek V4 Flash78.7%
- Qwen3.6 35B A3B44.9%
† DeepSeek V4.1 Flash: measured on its previous weights, before the 1017 update. No 2.1 score yet for 1017; on Terminal-Bench 4.0 the update took it from 26.8% to 33.8% (Artificial Analysis).
Pricing
- Input
- $0.15 per 1M tokens
- Output
- $0.60 per 1M tokens
- Cache read
- $0.028 per 1M tokens
Specs
- Context window
- 1M tokens
- Max output
- 384K tokens
- Vision
- Yes
- Tool calling
- Yes
- Reasoning
- Adjustable (none, low, high, max)
- Default effort
- high
- Weights
- FP8 on Hugging Face
- In production since
- September 18, 2026
Quickstart
Pick your tool; the command already carries this model's id. More tools (Pi, Copilot, Zed, omp) in the setup guides.
OpenCode
Built inLaunch OpenCode on this model with the umans CLI. Umans AI is also built into OpenCode: run /connect and pick it.
curl -fsSL https://api.code.umans.ai/cli/install.sh | bash # once
umans opencode --model umans-deepseek-v4.1-flash
