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Kimi K2.6 vs GPT-4.1 nano

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

Kimi K2.6 Cost
$1.75
GPT-4.1 nano Cost
$0.18
GPT-4.1 nano is 90% cheaper
FeatureKimi K2.6GPT-4.1 nano
ProviderMoonshot AIOpenAI
Input Price (1M)$0.95$0.10
Output Price (1M)$4.00$0.40
Context Window262,1441,000,000

Verdict

Kimi K2.6 costs $0.95 per 1M input tokens and $4.00 per 1M output tokens. GPT-4.1 nano costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. GPT-4.1 nano is 89% cheaper on input tokens than Kimi K2.6. For output tokens, GPT-4.1 nano is the more affordable option at $0.40/1M vs $4.00.

On context window, GPT-4.1 nano supports 1,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.

When to choose Kimi K2.6

  • ✓ You are already integrated with Moonshot AI

When to choose GPT-4.1 nano

  • ✓ You need the lowest input token cost ($ 0.10/1M)
  • ✓ Your workload is output-heavy — GPT-4.1 nano generates text cheaper
  • ✓ You need a larger context window (1,000,000 tokens)
  • ✓ You are already integrated with OpenAI

Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.

Frequently Asked Questions

Is Kimi K2.6 cheaper than GPT-4.1 nano?

GPT-4.1 nano is cheaper on input tokens at $0.10/1M vs $0.95/1M for Kimi K2.6 — a 89% saving.

What is the context window of Kimi K2.6 vs GPT-4.1 nano?

Kimi K2.6 has a 262,144-token context window. GPT-4.1 nano has a 1,000,000-token context window. GPT-4.1 nano supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: Kimi K2.6 or GPT-4.1 nano?

The best choice depends on your use case. For cost efficiency on input tokens, GPT-4.1 nano is the cheaper option. For maximum context length, GPT-4.1 nano supports 1,000,000 tokens. Use the comparison table above to find the right fit for your workload.