Comprehensive side-by-side LLM comparison
o1 leads with 1.4% higher average benchmark score. Kimi-k1.5 supports multimodal inputs. o1 is available on 2 providers. Both models have their strengths depending on your specific coding needs.
Moonshot AI
Kimi K1.5 was developed by Moonshot AI as an advanced language model with extended context capabilities, designed to handle long documents and conversations. Built to excel at tasks requiring comprehension of extensive information, it represents Moonshot's approach to long-context language understanding.
OpenAI
o1 was developed as part of OpenAI's reasoning-focused model series, designed to spend more time thinking before responding. Built to excel at complex reasoning tasks in science, coding, and mathematics, it employs extended internal reasoning processes to solve harder problems than traditional language models through careful step-by-step analysis.
1 month newer

o1
OpenAI
2024-12-17

Kimi-k1.5
Moonshot AI
2025-01-20
Context window and performance specifications
Average performance across 4 common benchmarks

Kimi-k1.5

o1
Available providers and their performance metrics

Kimi-k1.5

o1
Azure

Kimi-k1.5

o1

Kimi-k1.5

o1
OpenAI