Comprehensive side-by-side LLM comparison
o1 leads with 11.7% higher average benchmark score. o1 offers 283.6K more tokens in context window than DeepSeek-V2.5. DeepSeek-V2.5 is $74.58 cheaper per million tokens. Overall, o1 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-V2.5 was developed as an enhanced iteration of the DeepSeek-V2 architecture, designed to incorporate improvements in model quality and efficiency. Built to advance the DeepSeek foundation model series, it provides refined capabilities for general-purpose language understanding and generation tasks.
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.
7 months newer

DeepSeek-V2.5
DeepSeek
2024-05-08

o1
OpenAI
2024-12-17
Cost per million tokens (USD)

DeepSeek-V2.5

o1
Context window and performance specifications
Average performance across 5 common benchmarks

DeepSeek-V2.5

o1
Performance comparison across key benchmark categories

DeepSeek-V2.5

o1
Available providers and their performance metrics

DeepSeek-V2.5
DeepInfra
DeepSeek
Hyperbolic

DeepSeek-V2.5

o1

DeepSeek-V2.5

o1

o1
Azure
OpenAI