01
Playground and API together
Explore prompts in the browser, then move a working request into your application through the same independent account.
Independent Kimi K3 playground and API
Use Kimi K3 online or through an API.
An independent Kimi K3 playground and OpenAI-compatible API for long-context coding, visual reasoning, and research workflows, with streaming responses, managed keys, and transparent usage.
Sign in with Google and receive 500 starter credits.
Independent service operated by Luluisland studio. Not affiliated with or endorsed by Moonshot AI.
Playground / kimi-k3reasoning: max
Review this architecture and propose a migration plan with the smallest operational risk.
Kimi K3
I'll map dependencies first, then split the migration into reversible stages.
Inventory boundaries
Add compatibility layer
Shadow production traffic
Cut over with rollback
1M contextStreaming response
Try the live model
Put Kimi K3 to work.
This playground streams directly from the official Moonshot Kimi K3 API through our secure server proxy. Choose a reasoning level, keep context across turns, and inspect the model's reasoning trace separately from its final answer.
Kimi K3 / Live Playground
What are you working through?
Ask Kimi K3 about code, architecture, research, or any difficult knowledge-work problem.
Why KimiK3.online
Model capability, with a focused access layer.
Kimi K3 supplies the intelligence. This independent service adds a lightweight place to test prompts, create API keys, inspect usage, and manage credits without mixing model claims with product features.
02
Managed developer keys
Create and revoke credentials, separate environments, and review account-level usage without exposing upstream secrets.
03
Metered credits
See how cached input, standard input, and model output translate into credits, then subscribe or add a one-time pack.
04
Official model inference
Requests are proxied server-side to the official Moonshot API while account, billing, support, and data handling remain ours.
Built for difficult work
More context.
Fewer compromises.
01
Long-horizon coding
Work across large repositories, plan multi-step changes, and sustain complex engineering tasks.
02
Native visual understanding
Reason over images and visual workflows for frontend, design, research, and technical work.
03
1M-token context
Bring long documents, deep conversations, and substantial codebases into one working context.
04
Developer-ready output
Stream responses, request strict JSON, and connect tools through an OpenAI-compatible interface.
One account, two surfaces
Explore in the browser. Ship through the API.
Managed API keys
Create keys, monitor usage, and manage credits from your dashboard.
Familiar requests
Use an OpenAI-compatible request shape with streaming and reasoning controls.
Simple, metered pricing
Pay for the intelligence you use.
500 credits when you join with Google.
50 credits on your first login each UTC day.
Credits: 500 cached input tokens, 50 input tokens, or 10 output tokens.
01 / Monthly
Starter
$9.99/month
For focused personal projects and regular exploration.
- 10,000 monthly credits
- Playground and API access
- Usage history and billing controls
02 / Monthly Most popular
Pro
$19.99/month
For developers shipping with Kimi every week.
- 25,000 monthly credits
- Playground and API access
- Usage history and billing controls
03 / Monthly
Max
$49.99/month
For sustained, high-context production workloads.
- 75,000 monthly credits
- Playground and API access
- Usage history and billing controls
Top up anytime
One-time credit packs
Purchased credits expire after 90 days.
01 / One-time
Small
$20
Add credits without changing your monthly subscription.
20,000 credits
Sign in to buy02 / One-timeBest value
Medium
$50
Add credits without changing your monthly subscription.
60,000 credits
Sign in to buy03 / One-time
Large
$100
Add credits without changing your monthly subscription.
130,000 credits
Sign in to buyWhat is Kimi K3?
A large model designed for work that does not fit in one short prompt.
01 / Model2.8T flagship
Kimi K3 is Moonshot AI’s 2.8-trillion-parameter flagship model for long-horizon coding, knowledge work, reasoning, and native visual understanding. Official documentation describes a context window of up to one million tokens, allowing supported clients to work across large repositories, long documents, extended conversations, and mixed text-and-image evidence.
02 / RelationshipOfficial model, independent access
The model and this website are different things. Moonshot AI develops Kimi K3 and operates the official Kimi products and API. Luluisland studio operates KimiK3.online as an independent playground, API proxy, account system, and credit service. Model specifications come from first-party Kimi sources; product promises on this site describe our own interface.
03 / PracticeCapacity, not a target
A one-million-token maximum is capacity, not a reason to fill every request. Good applications retrieve relevant material, reserve room for output, use caching when eligible, validate structured results, and select reasoning effort according to task complexity. For production decisions, test Kimi K3 on work drawn from your own repository or research process.
Open model progressionOfficial visual
- 01Places Kimi K3 within the broader progression of frontier open models.
- 02Shows the direction of model capability over time rather than a single benchmark snapshot.
- 03Use the chart as context; validate performance on your own coding and research workloads.
Kimi K3 architectureOfficial visual
- 01Highlights Kimi Delta Attention (KDA) in the model's core architecture.
- 02Maps the Attention Residual design described in Kimi's technical introduction.
- 03Connects the high-level product claims to the official technical overview.
Coding
Map a repository, trace dependencies, plan reversible changes, review diffs, and verify with the project’s own checks.
Explore guideOpenCode
Connect Kimi K3 to a terminal coding agent with deliberate model, context, credential, and permission settings.
Explore guideTokens and context
Understand what consumes the context window, how output shares the limit, and where cached input can reduce usage.
Explore guideQuestions, answered
Kimi K3 access, without ambiguity.
What is Kimi K3?+
Kimi K3 is a 2.8-trillion-parameter flagship model from Kimi, built for coding, knowledge work, reasoning, and native visual understanding.
Is KimiK3.online an official Kimi website?+
No. KimiK3.online is an independent service operated by Luluisland studio and is not affiliated with or endorsed by Moonshot AI.
Can I use Kimi K3 through an API?+
Yes. KimiK3.online provides an OpenAI-compatible API workflow with keys, usage tracking, streaming responses, and account-level credit controls.
How do credits work?+
New accounts receive starter credits. Paid subscriptions include recurring usage, and one-time credit packs let you add capacity without changing plans.
Which inference provider powers the service?+
Playground and API requests are sent through our secure server proxy to the official Moonshot API. Your KimiK3.online account, credits, and support remain independent from Moonshot AI.
Why not use the official Kimi website directly?+
The official Kimi products provide the complete first-party experience. KimiK3.online is an independent option focused on a lightweight playground, OpenAI-compatible API access, managed keys, and one credit dashboard. Choose the service that best matches your workflow.
Product facts are based on the Kimi API documentation and Kimi technical blog. KimiK3.online is independent and not affiliated with Moonshot AI.