Kimi K3 vs K2.6: What Changes, and Which Plan You Need
K3 is not simply a faster K2.6. It was built for agentic coding and knowledge work: longer single conversations, more reliable tool use, and a credit system that rewards picking the right tier instead of the most expensive one.
Quick answer
What is the direct answer?
Choose Moderato if you want K3 chat with light agent use. Move to Allegretto or Allegro if you run coding agents daily, need more concurrent tasks, or work with very long documents. K2.6 remains available and is billed from the same shared credit pool, so you can mix models without changing plans.
Key points before you buy
- Both models draw on one shared credit pool — switching models does not need a new plan.
- K3 adds extra-long chat capacity (up to 1M tokens) on higher tiers.
- Agent concurrency scales from 2 tasks on Moderato/Allegretto to 4 on Allegro/Vivace.
- Kimi Code rate limits are separate from chat credits.
Jump to:Kimi K3 hub · Compare plans
The practical differences that affect your bill
K3 consumes credits faster on complex agent tasks, but it tends to finish them with fewer retries than K2.6.
- Long-context work: K3 handles up to 1M tokens of chat history on Allegretto and above.
- Agent work: K3 keeps multi-step tasks on track more often, which reduces wasted credits.
- Coding: Kimi Code benefits from K3, but the 5-hour and weekly limits are enforced separately.
- Chat: K2.6 stays cheaper for quick questions, and it is still selectable inside the app.
Which tier fits which workload
Match the tier to your monthly agent volume, not to the model name.
| Workload | Suggested tier | Why |
|---|---|---|
| Occasional K3 chat and research | Moderato | Entry K3 access, 60 credits |
| Daily coding with Kimi Code | Allegretto | Bigger pool, Goal Mode, 2 tasks |
| Heavy agent pipelines | Allegro | 360 credits, 4 concurrent tasks |
| Team or agency use | Vivace | 720 credits, largest limits |
Upgrading without losing your history
Membership changes happen on your own account, so conversations, projects and Kimi Code state stay in place.
- 1Check your current credit burn in Settings → Subscription.
- 2Pick the next tier up rather than jumping straight to Vivace.
- 3Top up through a storefront if you cannot pay Kimi directly.
- 4Re-check your credit usage after two weeks and adjust.
Live product
See live prices, stock and delivery
Articles never hard-code prices; the product page shows live availability.
View plansPrices and plans:Kimi K3 Moderato Price: Monthly and Annual Direct Top-Up · Kimi K3 Allegretto Price: Monthly and Annual Direct Top-Up · Kimi K3 Allegro Price: Monthly and Annual Direct Top-Up
Related hubs and pricing
The pages below read live catalogue data and can be used to verify prices and stock.
Sources and review scope
Plans and features change. The official sources below were checked at the last update; open them for the current version before buying.
- 1. Kimi Help Center — Membership pricing details ↗
Official monthly and annual plan prices, credit pools and K3 availability by tier.
- 2. Kimi Help Center — Membership overview ↗
How Kimi membership tiers, shared credits and Kimi Code limits fit together.
FAQ
Does K2.6 still work after upgrading to a K3 plan?
Yes. Membership tiers unlock access; you can still choose K2.6 inside the app, and both models draw on the same credit pool.
Is K3 available on the cheapest paid tier?
K3 chat starts at Moderato. Lower-cost plans that do not include K3 remain useful for lighter work but will not give you K3 access.