Models / DeepSeek

DeepSeek V4.1 Flash

DeepSeek · Open Weight

Recent snapshotData snapshot cf-1.3
Cheese Index62.1cf-1.3
Input / output$0.3 / $1.2USD / 1M tokens
Measured dimensions8 / 13Evidence
Context window1,048,576tokens · conditions unverified

Decision brief

Start by investigating gpqa and Reasoning workloads. These are observed strengths in the dataset; validate them on your own tasks.

Coverage counts measured dimensions, not confidence. Benchmark conditions and public source links may be missing. Missing: Instructions, Multilingual, swe, terminal, mcp.

View evidence ↓

Measured task dimensions

Coding
60.7
Agent workflows
62.1
Mathematics
70.1
Knowledge
65.3
Instructions
—
Multimodal
77.9
Multilingual
—
Reasoning
83.4
swe
—
terminal
—
gpqa
90.9
hle
36.8
mcp
—

Normalized dimensions. A dash means unknown, not zero.

Input / output

$0.3 / $1.2 · USD / 1M tokens

Listed dataset prices; provider terms and dates need verification. Zero without explicit free-price evidence is treated as unknown.

Cache, batch, tool fees and self-hosting costs: not verified.

Index variability stability

100.0 · 7 days of history

band

This is index variability, not API uptime or reliability.

Before deployment

  • Confirm provider endpoint, license and version.
  • Test your prompts, tool calls and failure recovery.
  • Verify prices and latency with real usage.

Evidence

These are source categories published by the dataset. Original public links, sample sizes and harness details remain incomplete.

Source categoryProvenance typeAs ofOriginal public link
Codingcore / official_json2026-11-04Not published
Agent workflowscore / official_json2026-11-04Not published
depthcore+cross / official_json2026-11-04Not published
Published index inputs · cf-1.3
Coding50.8
Agent workflows62.1
Long workflows—
Overall—

The method includes overall, but this snapshot does not expose that input. The total cannot be fully reproduced from these displayed axes.

Method: median of available axes, with an 8% Ops blend when present. Source scores are displayed without recalculation or imputation.

Method →
Index history
As ofCheese Index
2026-10-2962.1
2026-10-3062.1
2026-10-3162.1
2026-11-0162.1
2026-11-0262.1
2026-11-0362.1
2026-11-0462.1

Only recorded dates are shown. Missing days are not filled.