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Kimi K2 Instruct vs o4-mini
Comprehensive side-by-side LLM comparison
o4-mini leads with 14.8% higher average benchmark score. o4-mini offers 37.9K more tokens in context window than Kimi K2 Instruct. Kimi K2 Instruct is $2.63 cheaper per million tokens. o4-mini supports multimodal inputs. Overall, o4-mini is the stronger choice for coding tasks.
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Moonshot AI
Kimi K2 Instruct was developed as the instruction-tuned version of Kimi K2, designed to follow user instructions reliably across diverse tasks. Built to serve general-purpose conversational and task-completion applications, it provides Moonshot's accessible interface for language AI.
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OpenAI
o4-mini was created as part of the next generation of OpenAI's reasoning models, designed to continue advancing the balance between analytical capability and operational efficiency. Built to bring cutting-edge reasoning techniques to applications requiring quick turnaround, it represents the evolution of compact reasoning-focused models.
2 months newer
o4-mini
OpenAI
2025-04-16
Kimi K2 Instruct
Moonshot AI
2025-07-11
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Pricing Comparison
Cost per million tokens (USD)
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Kimi K2 Instruct
Input:$0.57
Output:$2.30($2.63 cheaper)
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o4-mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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Kimi K2 Instruct
Average Score:55.1%
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o4-mini
Average Score:69.9%(+14.8%)
Performance comparison across key benchmark categories
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Kimi K2 Instruct
Coding71.6%(+3.5%)
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o4-mini
Coding68.1%
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Knowledge Cutoff
Training data recency comparison
o4-mini
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Kimi K2 Instruct
1 providers
Novita
Throughput: 45 tok/s
Latency: 0.95ms
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o4-mini
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Kimi K2 Instruct
Avg Score:55.1%
Providers:1
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o4-mini
Avg Score:69.9%(+14.8%)
Providers:1