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Kimi K3 vs GPT Mini (120b)

At a glance
MoonshotAIKimi K3

MoonshotAI's 2.8T-parameter flagship for complex coding, knowledge work, and long-horizon agent runs.

1.0M ctx$3.00/$15.00 per M
OpenAIGPT Mini (120b)

OpenAI's budget-friendly reasoning model — fast and surprisingly capable.

73131K ctx$0.04/$0.18 per M#49/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MoonshotAIKimi K3
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Capability
Capability—
Reasoning & Knowledge
Graduate Science93.5%Expert-Level43.5%
Coding
Code Editing—
Agentic
Terminal Tasks88.3%Task Horizon—
OpenAIGPT Mini (120b)
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI73.2
Reasoning & Knowledge
Graduate Science—Expert-Level—
Coding
Code Editing41.8%
Agentic
Terminal Tasks18.7%Task Horizon42min
Specs
MoonshotAIKimi K3
1.0M
Context
16K
Max output
Jul 2026
Released
OpenAIGPT Mini (120b)
131K
Context
16K
Max output
Aug 2025
Released
Capabilities
MoonshotAIKimi K3
Vision
Audio
Reasoning
OpenAIGPT Mini (120b)
Vision
Audio
Reasoning
Pricing
MoonshotAIKimi K3
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
OpenAIGPT Mini (120b)
Live pricing, shown before you run
Input$0.04/M tokens
Output$0.18/M tokens
Chat with Kimi K3Go to model
Chat with GPT Mini (120b)Go to model
Frequently Asked Questions: Kimi K3 vs GPT Mini (120b)▼

Which is better, Kimi K3 or GPT Mini (120b)?

▼

Both Kimi K3 and GPT Mini (120b) are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Kimi K3 or GPT Mini (120b)?

▼

GPT Mini (120b) has a lower blended cost. Kimi K3: $3.00 input / $15.00 output. GPT Mini (120b): $0.04 input / $0.18 output.

Which has a larger context window, Kimi K3 or GPT Mini (120b)?

▼

Kimi K3 has a larger context window: Kimi K3 supports 1M tokens vs GPT Mini (120b) at 131K tokens.

Do both Kimi K3 and GPT Mini (120b) support vision?

▼

Kimi K3 supports vision/image input, but GPT Mini (120b) does not.

What are the key differences between Kimi K3 and GPT Mini (120b)?

▼

Key differences: GPT Mini (120b) is significantly cheaper; only Kimi K3 supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Kimi K3 and GPT Mini (120b) for free on idapt.app to see which performs better for your specific needs.

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