docketrouter
Models / DeepSeek

DeepSeek V4 Flash 0731

by DeepSeek · deepseek/deepseek-v4-flash-0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....

reasoningtool-usereleased 2026-07-31
JSONRoute to this model
Legal score · raw
-
not yet benchmarked
Context
1.05M
max output 131K
Input
$0.55
per 1M tokens
Output
$1.65
per 1M tokens
Suite cost
-
no run recorded

Prompt caching

Grounded answers re-send the same retrieved authority every turn, so a cached read is what a long matter actually costs. Prices are per 1M tokens, from the provider’s own catalog.

Cache read
$0.02
31x cheaper than uncached
Uncached input
$0.55
per 1M tokens

Capabilities

Modalities
in text
out text
Request parameters it accepts
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_pparallel_tool_callspresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_atop_ktop_logprobstop_p

Benchmark results

This model has not been run through the suite yet. See Humanity's Last Lawsuit for the benchmark models are ranked on.

Measured by DocketBuster

These numbers come from DocketBuster's own legal battery, not from DocketRouter's suite. Latest run per metric, with n and a 95% Wilson interval where the source reports one. See docketbuster.com/benchmarks.

MetricValuenIntervalMeasured
Statute pinpoint, exact section (no retrieval)12.3% (37/300)30095% CI 9.1% to 16.5%2026-08-21
Statute pinpoint, exact section (with DocketBuster retrieval)76.5% (235/307)30795% CI 71.5% to 80.9%2026-08-24
Say-nothing rate (declines to bluff when the answer is not in the record)100.0%30095% CI 98.7% to 100.0%2026-08-21
Abstained on statute pinpoint16.3% (50/307)307count, no interval reported2026-08-24
Coaching quality (rubric, 0 to 8)7.16 / 8-rubric mean, no interval reported2026-08-22