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DeepSeek-V4-Flash vs Kimi K2.6

DeepSeek · released

Wins 4 of 7 areas

Agents · Reasoning · Math · Following instructions

Moonshot · released

Wins 2 of 7 areas

Coding · Long documents

DeepSeek-V4-Flash wins more areas, narrowly.Kimi K2.6 is better at coding.

Scores updated · 65 tests both models report · How we compare

Where each one wins

Tests won in each of the seven areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Long documents rests on a single test.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

DeepSeek-V4-Flash$0.44 to read · $1.32 to write$1.76Price from Artificial Analysis
Kimi K2.6$0.95 to read · $4.00 to write$4.95Price from Artificial Analysis

DeepSeek-V4-Flash costs 64% less for the same work.

The biggest differences

The three tests each model wins by the widest margin. Scores are out of 100.

Where DeepSeek-V4-Flash pulls ahead

  • Real work tasks from 44 professionsGDPVal+19.9points aheadDeepSeek-V4-Flash46.9Kimi K2.627
  • Customer-service tasks in a simulated bankτ-Bench V3 · Banking+16.1points aheadDeepSeek-V4-Flash39.4Kimi K2.623.3
  • Command-line tasks in a real terminalTerminal-Bench 2.1+12.8points aheadDeepSeek-V4-Flash78.7Kimi K2.665.9

Where Kimi K2.6 pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+51.2points aheadKimi K2.659.5DeepSeek-V4-Flash8.3
  • Finds hard-to-locate facts by browsing the webBrowseComp+13.1points aheadKimi K2.686.3DeepSeek-V4-Flash73.2
  • Hard command-line tasks in a real terminalTerminal-Bench Hard+8.3points aheadKimi K2.643.9DeepSeek-V4-Flash35.6

Every test, side by side

All 65 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingKimi K2.6

Full coding ranking

AgentsDeepSeek-V4-Flash

Full agents ranking

ReasoningDeepSeek-V4-Flash

Full reasoning ranking

FactsEven

Full facts ranking

MathDeepSeek-V4-Flash

Full math ranking

Long documentsKimi K2.6
  • AA-LCRKimi K2.6 by 1.379.781+1.3

Full long documents ranking

Following instructionsDeepSeek-V4-Flash

Full following instructions ranking

Other results33 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, DeepSeek-V4-Flash or Kimi K2.6?

DeepSeek-V4-Flash wins four of the seven areas where both have results: agents, reasoning, math and following instructions. Kimi K2.6 wins coding and long documents. They are level on facts.

Which is better for coding?

Kimi K2.6. It wins 7 of the 10 coding tests both models report; DeepSeek-V4-Flash wins 2, and 1 is a tie.

Which is cheaper?

DeepSeek-V4-Flash costs $0.44 per million input tokens and $1.32 per million output tokens; Kimi K2.6 costs $0.95 and $4.00. That makes DeepSeek-V4-Flash about 64% cheaper for the same work.

How do you compare the two?

We use the 65 benchmark tests both models have published scores on. The verdict counts the 32 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 33 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.

Compare DeepSeek-V4-Flash with

DeepSeek

Across the field

Compare Kimi K2.6 with

Moonshot

Across the field

All comparisons