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Nova Premier 1.0 vs Kimi K3.1 Pro

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

Kimi K3.1 Pro is the cheaper of the two; neither can be ranked on quality here.

Nova Premier 1.0 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.

amazon

Nova Premier 1.0

Blended / 1M
$5.00
Context
1M
Released
Oct 31, 2025
Overall score
Not evaluated
tool callingimage inputprompt caching

moonshotai

Kimi K3.1 Pro

Blended / 1M
$4.00
Context
1.0M
Released
Oct 23, 2026
Overall score
71.3
reasoningtool callingimage inputvideo inputprompt caching

Specs and pricing

MetricNova Premier 1.0Kimi K3.1 Pro
LiveBench overall

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

—71.3
Cost per point

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

—$0.0104
Blended price / 1M

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

$5.00$4.00win
Input price / 1M$2.50$2.00win
Output price / 1M$12.50$10.00win
Cached input / 1M

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

$0.625$0.200win
Context window1M1.0M
Max output tokens32K944Kwin

Benchmarks by category

An overall score averages away the thing you probably care about. These are the seven LiveBench categories scored separately — Nova Premier 1.0 on top, Kimi K3.1 Pro below, both out of 100.

Long-horizon agentic
—
39.1
Coding
—
81.8
Reasoning
—
91.1
Browser
—
75.9
Data analysis
—
79.1
Research
—
77.9
Documents & design
—
77.8

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.

WorkloadNova Premier 1.0Kimi K3.1 Pro
Support chatbot

1.2K in / 400 out × 200K requests

$1,465/mo$1,150/mo
RAG assistant

8K in / 600 out × 100K requests

$2,000/mo$1,480/mo
Coding agent

40K in / 4K out × 20K requests

$1,950/mo$1,392/mo
Document extraction

20K in / 1.5K out × 50K requests

$3,344/mo$2,660/mo
Bulk classification

500 in / 20 out × 5M requests

$6,563/mo$5,100/mo
Run these two through the cost calculator

Which should you pick?

You are cost-constrained

Kimi K3.1 Pro

Cheaper on blended list price at $4.00 per million tokens.

Nova Premier 1.0 vs Kimi K3.1 Pro FAQ

Which is better, Nova Premier 1.0 or Kimi K3.1 Pro?

Kimi K3.1 Pro is the cheaper of the two; neither can be ranked on quality here. Nova Premier 1.0 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 Nova Premier 1.0 cheaper than Kimi K3.1 Pro?

Kimi K3.1 Pro is cheaper. On a 3:1 input:output blend, Nova Premier 1.0 lists at $5.00 per million tokens and Kimi K3.1 Pro at $4.00 — Kimi K3.1 Pro is 25% cheaper. Input and output are priced separately — Nova Premier 1.0 charges $2.50 in and $12.50 out, Kimi K3.1 Pro charges $2.00 and $10.00 — so the model that looks cheaper flips depending on how output-heavy your workload is.

Does Nova Premier 1.0 or Kimi K3.1 Pro have a bigger context window?

They are effectively the same — 1M for Nova Premier 1.0 and 1.0M for Kimi K3.1 Pro.

Do Nova Premier 1.0 and Kimi K3.1 Pro support prompt caching?

Both publish a cached-input rate: $0.625 per million for Nova Premier 1.0 and $0.200 for Kimi K3.1 Pro, against full input rates of $2.50 and $2.00. 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.