Compare / Models

GPT-5.5 vs Kimi K2.6

Price, context window and capabilities side by side — read from the same catalog that meters your calls, not from a press release.

Kimi K2.6 is 5.3x cheaper on input. Kimi K2.6 is 7.5x cheaper on output. Only GPT-5.5 declares vision.

At a glance

Side by side

OpenAI

OpenAI's flagship, one key away.

Input$5/M
Output$30/M

Moonshot AI

Moonshot's value tier, K3-style agentic tool-calling at half the price, a favorite for high-volume agent loops.

Input$0.95/M
Output$4/M

Specifications

Every difference we can measure

 GPT-5.5Kimi K2.6
Input price$5/M$0.95/M
Output price$30/M$4/M
Context window256K tokens256K tokens
VisionYesNo
Tool callingYesYes

A row appears only when we hold the fact for both models. Anything the provider has not published is left out rather than guessed, so an empty row is missing data and never a zero.

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FAQ

Frequently asked questions

What is the difference between GPT-5.5 and Kimi K2.6?

Kimi K2.6 is 5.3x cheaper on input. Kimi K2.6 is 7.5x cheaper on output. Only GPT-5.5 declares vision. Both run on the same endpoint and the same key here, so trying each is a one-line change to the model id.

Which is cheaper, GPT-5.5 or Kimi K2.6?

Kimi K2.6 is, on input tokens. Output usually dominates the bill on generative work, so check the output row above against your own ratio of prompt to completion before deciding.

Can I switch between GPT-5.5 and Kimi K2.6 without changing my code?

Yes. Both are OpenAI-compatible through one CompanyFabric key, so switching is the model string and nothing else — no second SDK, no second contract, one prepaid balance across both.

Do I have to choose?

No. Send companyfabric/auto and we route each request to the cheapest model that can serve it, which is how most people use both without deciding in advance.

One key. Every model. Exact prices.

Run GPT-5.5 and Kimi K2.6 on the same key and compare them on your own prompts. Free starter credits included, no subscription required.