Kimi K3.1 Pro vs o1-pro
Kimi K3.1 Pro leads the LLM Stats Score 55.5 to 19.0.
Moonshot AI · OpenAI · Updated for 2026
Which is better?
Kimi K3.1 Pro leads the overall LLM Stats Score 55.5 to 19.0, ranking #5 overall.
In the 1 individual benchmarks reported for both models, Kimi K3.1 Pro wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Kimi K3.1 Pro
- overall performance matters — it scores 55.5 and ranks #5 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Oct 2026
Choose o1-pro
- you are already invested in the OpenAI ecosystem
At a glance
The differences that matter most.
Individual benchmarks
30 reported for Kimi K3.1 Pro · 2 for o1-pro
Kimi K3.1 Pro outperforms in 1 benchmarks (GPQA), while o1-pro is better at 0 benchmarks.
Kimi K3.1 Pro significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Kimi K3.1 Pro specifies input context (1,048,576 tokens). Only Kimi K3.1 Pro specifies output context (1,048,576 tokens).
Input capabilities
Documented input modalities across available providers
Both Kimi K3.1 Pro and o1-pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Kimi K3.1 Pro
o1-pro
Release Timeline
When each model was launched
Kimi K3.1 Pro was released on 2026-10-23, while o1-pro was released on 2024-12-17.
Kimi K3.1 Pro is 23 months newer than o1-pro.
Oct 23, 2026
4 days ago
1.8yr newerDec 17, 2024
1.9 years ago
Knowledge Cutoff
When training data ends
o1-pro has a documented knowledge cutoff of 2023-09-30, while Kimi K3.1 Pro's cutoff date is not specified.
We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without Kimi K3.1 Pro's cutoff date.
—
Sep 2023
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi K3.1 Pro and o1-pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K3.1 Pro vs o1-pro.