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Kimi K2 Thinking vs o4 mini
Comprehensive side-by-side LLM comparison
o4 mini offers 35.8K more tokens in context window than Kimi K2 Thinking. Both models have similar pricing. o4 mini supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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Moonshot AI
Kimi K2 Thinking, released by Moonshot AI on November 6, 2025, is a reasoning-focused variant of Kimi K2 with 1 trillion total parameters and 32 billion active parameters, featuring extended chain-of-thought processing for complex problem solving. It builds on K2's agentic coding strengths with additional capabilities for mathematical and scientific reasoning. Kimi K2 Thinking targets open-source deployments requiring deep, deliberate reasoning across coding and analytical domains.
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OpenAI
OpenAI o4 mini, released by OpenAI in April 2025, is a compact reasoning model from the o4 family that combines multimodal understanding with efficient chain-of-thought processing. It features a 200K token context window and native image understanding, with strong performance on mathematics and coding benchmarks relative to its inference cost. o4 mini targets cost-sensitive applications requiring both visual reasoning and mathematical accuracy.
6 months newer
o4 mini
OpenAI
2025-04-16
Kimi K2 Thinking
Moonshot AI
2025-11-06
Pricing Comparison
Cost per million tokens (USD)
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Kimi K2 Thinking
Input:$1.00
Output:$4.00($0.50 cheaper)
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o4 mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Kimi K2 Thinking
1 providers
Moonshot AI
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o4 mini
1 providers
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Kimi K2 Thinking
Avg Score:0.0%
Providers:1
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o4 mini
Avg Score:0.0%
Providers:1