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Grok 4 vs Kimi K2.5
Comprehensive side-by-side LLM comparison
Grok 4 offers 14.3K more tokens in context window than Kimi K2.5. Kimi K2.5 is $22.50 cheaper per million tokens. Grok 4 supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
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Moonshot AI
Kimi K2.5, released by Moonshot AI in January 2026, is an updated Mixture-of-Experts large language model with 1 trillion total parameters and 32 billion active parameters. It builds on Kimi K2 with improved coding performance across multiple languages and an expanded context window. Kimi K2.5 targets agentic development workflows, polyglot code generation, and open-source deployments requiring large-scale MoE reasoning.
5 months newer
Grok 4
xAI
2025-07-10
Kimi K2.5
Moonshot AI
2026-01
Pricing Comparison
Cost per million tokens (USD)
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Grok 4
Input:$5.00
Output:$25.00
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Kimi K2.5
Input:$1.50
Output:$6.00($22.50 cheaper)
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Grok 4
1 providers
xAI
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Kimi K2.5
1 providers
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Grok 4
Avg Score:0.0%
Providers:1
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Kimi K2.5
Avg Score:0.0%
Providers:1