GPT-4 vs Kimi-k1.5
Kimi-k1.5 leads the LLM Stats Score 17.2 to 3.0.
OpenAI · Moonshot AI · Updated for 2026
Which is better?
Kimi-k1.5 leads the overall LLM Stats Score 17.2 to 3.0, ranking #224 overall.
In the 1 individual benchmarks reported for both models, Kimi-k1.5 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 GPT-4
- you want predictable pricing at $30.00/M input and $60.00/M output
Choose Kimi-k1.5
- overall performance matters — it scores 17.2 and ranks #224 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 Jan 2025
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
12 reported for GPT-4 · 9 for Kimi-k1.5
GPT-4 outperforms in 0 benchmarks, while Kimi-k1.5 is better at 1 benchmark (MMLU).
Kimi-k1.5 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 GPT-4 specifies input context (32,768 tokens). Only GPT-4 specifies output context (32,768 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-4 and Kimi-k1.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4
Kimi-k1.5
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-4 was released on 2023-06-13, while Kimi-k1.5 was released on 2025-01-20.
Kimi-k1.5 is 20 months newer than GPT-4.
Jun 13, 2023
3.3 years ago
Jan 20, 2025
1.7 years ago
1.6yr newerKnowledge Cutoff
When training data ends
GPT-4 has a documented knowledge cutoff of 2022-12-31, while Kimi-k1.5's cutoff date is not specified.
We can confirm GPT-4's training data extends to 2022-12-31, but cannot make a direct comparison without Kimi-k1.5's cutoff date.
Dec 2022
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Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4 and Kimi-k1.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4 vs Kimi-k1.5.