Comprehensive side-by-side LLM comparison
GPT-5 leads with 1.7% higher average benchmark score. GPT-5 offers 3.7K more tokens in context window than Kimi K2 0905. Kimi K2 0905 is $8.15 cheaper per million tokens. GPT-5 supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
Moonshot AI
Kimi K2 was introduced as the second generation of Moonshot's language model family, designed to provide enhanced capabilities across language understanding and generation. Built with architectural improvements and expanded training, it represents a significant advancement in Moonshot's model offerings.
29 days newer

GPT-5
OpenAI
2025-08-07

Kimi K2 0905
Moonshot AI
2025-09-05
Cost per million tokens (USD)

GPT-5

Kimi K2 0905
Context window and performance specifications
Average performance across 4 common benchmarks

GPT-5

Kimi K2 0905
GPT-5
2024-09-30
Available providers and their performance metrics

GPT-5
OpenAI
ZeroEval


GPT-5

Kimi K2 0905

GPT-5

Kimi K2 0905
Kimi K2 0905
Novita
ZeroEval