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MiniMax M3.1 Flash vs Kimi K2.6

Published LiveBench scores across all seven categories, live list pricing, context windows, and the measured cost of a point of capability — for both models, side by side.

OpenRouter + LiveBenchAll comparisonsFull leaderboard

MiniMax M3.1 Flash is the cheaper of the two; neither can be ranked on quality here.

Kimi K2.6 does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.

minimax

MiniMax M3.1 Flash

Blended / 1M
$0.262
Context
1.0M
Released
Oct 19, 2026
Overall score
66.9
reasoningtool callingimage inputvideo inputprompt caching

moonshotai

Kimi K2.6

Blended / 1M
$1.34
Context
262K
Released
Apr 20, 2026
Overall score
Not evaluated
reasoningtool callingimage inputprompt caching

Specs and pricing

MetricMiniMax M3.1 FlashKimi K2.6
LiveBench overall

Weighted mean of the seven LiveBench category scores, 0–100. Higher is better.

66.9—
Cost per point

Measured benchmark spend divided by overall score — dollars per point of capability.

$0.0015—
Blended price / 1M

3:1 input:output mix, the usual shape of production traffic.

$0.262win$1.34
Input price / 1M$0.150win$0.650
Output price / 1M$0.600win$3.41
Cached input / 1M

Price of an input token served from the prompt cache, where the provider publishes one.

$0.015win$0.150
Context window1.0Mwin262K
Max output tokens524Kwin236K

Benchmarks by category

An overall score averages away the thing you probably care about. These are the seven LiveBench categories scored separately — MiniMax M3.1 Flash on top, Kimi K2.6 below, both out of 100.

Long-horizon agentic
28.8
—
Coding
83.9
—
Reasoning
82.9
—
Browser
80.6
—
Data analysis
71.4
—
Research
72.7
—
Documents & design
74.0
—

What each one costs to run

Per-token prices are hard to feel. These are monthly list costs for both models across five workload shapes, using each provider's published cached-input rate where there is one.

WorkloadMiniMax M3.1 FlashKimi K2.6
Support chatbot

1.2K in / 400 out × 200K requests

$74.28/mo$392.80/mo
RAG assistant

8K in / 600 out × 100K requests

$102.00/mo$524.60/mo
Coding agent

40K in / 4K out × 20K requests

$92.40/mo$512.80/mo
Document extraction

20K in / 1.5K out × 50K requests

$188.25/mo$880.75/mo
Bulk classification

500 in / 20 out × 5M requests

$367.50/mo$1,716/mo
Run these two through the cost calculator

Which should you pick?

You need to fit large documents in one call

MiniMax M3.1 Flash

Wider context window — 1.0M against 262K.

MiniMax M3.1 Flash vs Kimi K2.6 FAQ

Which is better, MiniMax M3.1 Flash or Kimi K2.6?

MiniMax M3.1 Flash is the cheaper of the two; neither can be ranked on quality here. Kimi K2.6 does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.

Is MiniMax M3.1 Flash cheaper than Kimi K2.6?

MiniMax M3.1 Flash is cheaper. On a 3:1 input:output blend, MiniMax M3.1 Flash lists at $0.262 per million tokens and Kimi K2.6 at $1.34 — MiniMax M3.1 Flash is 5.1× cheaper. Input and output are priced separately — MiniMax M3.1 Flash charges $0.150 in and $0.600 out, Kimi K2.6 charges $0.650 and $3.41 — so the model that looks cheaper flips depending on how output-heavy your workload is.

Does MiniMax M3.1 Flash or Kimi K2.6 have a bigger context window?

MiniMax M3.1 Flash has the larger context window: 1.0M for MiniMax M3.1 Flash against 262K for Kimi K2.6. Note that a window you can fill is not a window you should fill — retrieval quality usually degrades well before the limit, and you pay for every token you put in it.

Do MiniMax M3.1 Flash and Kimi K2.6 support prompt caching?

Both publish a cached-input rate: $0.015 per million for MiniMax M3.1 Flash and $0.150 for Kimi K2.6, against full input rates of $0.150 and $0.650. On a workload with a long stable prefix — a system prompt, a tool schema, a retrieved corpus — that changes the economics more than the headline price does.

Related comparisons

How these numbers are produced

  • Price — provider list price from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores — LiveBench release 2026-10-25, using their own category map. Each model shows its strongest published run. A blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
  • “Win” — awarded only past a threshold: one full point on a benchmark score, 10% on a price, 25% on a context window. Anything tighter reports as a tie, because effort settings alone move a LiveBench score by more than that.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.