About this vendor
Vendor-level selection advice by Y-API. The per-model pages linked below carry the model-specific checks; nothing here is a measured comparison.
Where this vendor fits
Kimi occupies the premium open-weight tier: above GLM and DeepSeek on price, below Claude and GPT-5.6, with the differentiator that K3’s weights are published and its card is auditable in a way closed frontier models are not.
What to watch for
The roughly 4× output-price gap between K3 and K2.6 makes model choice a budget decision, and agent-style loops multiply exposure because every turn re-reads context at input price. K2.6’s smaller window also changes what a long task means on that entry.
Models on Y-API
Prices are account-credit snapshots from the Y-API catalog. Each model links to its own guide with a cost estimator and a request example.
Account credit / Cash equivalent · $1 paid adds $10 of credit; the cash equivalent is credit consumed ÷ 10. These are Y-API prices, not the publisher’s list prices.
Choosing within the lineup
Route UI generation and bounded coding tasks to K2.6 first, and promote a workload to K3 when tasks demonstrably exceed its window or run many tool turns. Compare both against GLM 5.3 and Claude Sonnet 5 on the same repository task before settling.
Before you choose
When is Kimi K3 worth its premium over K2.6?
Only a task-level comparison can establish it. K3’s million-token window and agent focus matter when work genuinely exceeds 262,144 tokens or runs long tool loops; for bounded component work the price difference is rarely justified.
Sources & scope
Vendor scope on this site is exactly the reviewed model guides listed above; a vendor page exists only while at least one of its models is reviewed. Claims about architecture or positioning follow the cited pages. We do not publish measured latency, uptime or benchmark scores for any vendor.