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Grok 4.5 vs Kimi K3

According to AI Tier List, Kimi K3 (Tier A) ranks higher than Grok 4.5 (Tier B) for Chatbot & Conversation. Kimi K3 is a new large language model offering an efficient cache-based token pricing structure.

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Grok 4.5 logo
Grok 4.5
Kimi K3 logo
Kimi K3
TierTier BTier A
Rating3 / 54 / 5
PricingPaidPaid
CategoryChatbot & ConversationChatbot & Conversation
Best Forgrok, xai, llm, chatbotllm, api, opensource, ai-model

Grok 4.5Strengths

Specialized in coding and agentic tasks, Over 60% cheaper than competitors, 500K token context window, Real-time information access, xAI ecosystem integration

Grok 4.5Weaknesses

Delayed availability in the EU, Complex pricing structure based on token usage, Need for further verification of agent reliability

Kimi K3Strengths

1M token context window, industry-leading code reasoning performance, competitive API pricing, multimodal reasoning capabilities

Kimi K3Weaknesses

Unstable web search functionality, early-stage ecosystem integration

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