Compare · ModelsLive · 2 picked · head to head

GPT-4o (2024-05-13) vs Kimi K2 Thinking

Side by side · benchmarks, pricing, and signals you can act on.

Winner summary

Kimi K2 Thinking wins 2 of 2 shared benchmarks. Leads in knowledge · math.

Category leads
knowledge·Kimi K2 Thinkingmath·Kimi K2 Thinking
Hype vs Reality
GPT-4o (2024-05-13)
#110 by perf·no signal
QUIET
Kimi K2 Thinking
#103 by perf·#17 by attention
UNDERRATED
Best value
6.7x better value than GPT-4o (2024-05-13)
GPT-4o (2024-05-13)
5.1 pts/$
$10.00/M
Kimi K2 Thinking
34.0 pts/$
$1.55/M
Vendor risk
OpenAI logo
OpenAI
$840.0B·Tier 1
Medium risk
moonshotai logo
Moonshot AI
$18.0B·Tier 1
Medium risk
Head to head
GPT-4o (2024-05-13)Kimi K2 Thinking
GPQA diamond
Kimi K2 Thinking leads by +47.1
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-4o (2024-05-13)
31.9
Kimi K2 Thinking
79.0
OTIS Mock AIME 2024-2025
Kimi K2 Thinking leads by +76.9
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
GPT-4o (2024-05-13)
6.2
Kimi K2 Thinking
83.0
Full benchmark table
BenchmarkGPT-4o (2024-05-13)Kimi K2 Thinking
GPQA diamond
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
31.979.0
OTIS Mock AIME 2024-2025
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
6.283.0
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
OpenAI logoGPT-4o (2024-05-13)$5.00$15.00128K tokens (~64 books)$75.00
moonshotai logoKimi K2 Thinking$0.60$2.50262K tokens (~131 books)$10.75