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Kimi K2 Thinking vs GPT 6 Luna Pro

At a glance

Kimi K2 with always-on extended reasoning for complex problem solving.

262K ctx$0.60/$2.50 per M

OpenAI's GPT-6 Luna served in pro reasoning mode for the hardest problems.

1.1M ctx$0.10/$0.50 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper81%
Specs
262K
Context
236K
Max output
Nov 2025
Released
1.1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.60/M tokens
Output$2.50/M tokens
Live pricing, shown before you run
Input83%$0.10/M tokens
Output80%$0.50/M tokens
Cache read$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Chat with Kimi K2 ThinkingGo to model
Chat with GPT 6 Luna ProGo to model
Frequently Asked Questions: Kimi K2 Thinking vs GPT 6 Luna Pro▼

Which is better, Kimi K2 Thinking or GPT 6 Luna Pro?

▼

Both Kimi K2 Thinking and GPT 6 Luna Pro 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 K2 Thinking or GPT 6 Luna Pro?

▼

GPT 6 Luna Pro has a lower blended cost. Kimi K2 Thinking: $0.60 input / $2.50 output. GPT 6 Luna Pro: $0.10 input / $0.50 output.

Which has a larger context window, Kimi K2 Thinking or GPT 6 Luna Pro?

▼

GPT 6 Luna Pro has a larger context window: Kimi K2 Thinking supports 262K tokens vs GPT 6 Luna Pro at 1.1M tokens.

Do both Kimi K2 Thinking and GPT 6 Luna Pro support vision?

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GPT 6 Luna Pro supports vision/image input, but Kimi K2 Thinking does not.

What are the key differences between Kimi K2 Thinking and GPT 6 Luna Pro?

▼

Key differences: GPT 6 Luna Pro is significantly cheaper; only GPT 6 Luna Pro 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 K2 Thinking and GPT 6 Luna Pro for free on idapt.app to see which performs better for your specific needs.

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