DeepSeek V4.1 Flash 1017
High-throughput 1017 coding workhorse (90.6% Terminal-Bench 2.1, 384K max output).
High-speed October 1017 coding checkpoint combining 90.6% Terminal-Bench 2.1 accuracy, 384K maximum output length, and 1M context for multi-file SWE agents.
Built specifically for agentic coding loops, large patch synthesis, and shell workflows. Handles whole-file edits cleanly thanks to its 384K output ceiling while sustaining rapid streaming throughput.
Multi-file codingTerminal agentsLarge diff synthesisFast reasoningAgentic CLI codingLarge file generationTest fixingCI repair
Strengths
Verified 90.6% Terminal-Bench 2.1, 90.9% GPQA, 3471 Codeforces rating, huge 384K output limit, fast streaming speed.
Considerations
Default high-speed SWE sub-agent lane for OpenClaw, DeepSeek Harness, Cline, and Roo Code.
Input$0.3/1M
Output$1.2/1M
Cached read$0.007/1M
ReleasedOct 17, 2026
Live throughput history
source: status.ebotservers.comParameters671B
Context1M
Max output384K
Intelligence index32
TPS avg 24h59.9
TTFB p5024453 ms
Uptime100.0%
Published benchmarks
Terminal-Bench 2.1
90.6%
GPQA Diamond
90.9%
Codeforces
3471rating
Call it
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