$ diff kimi-k3-1-pro beam-1-0
Kimi K3.1 Pro vs Beam 1.0
Values come from Kimi K3.1 Pro and Beam 1.0, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Moonshot AIKimi K3.1 Pro
- context
- 1.0M
- weights
- —
- $/M in
- $2
- $/M out
- $10
- context
- 1M
- weights
- open
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- Kimi K3.1 Pro takes 1.0M against 1M — modestly more room in a single request.
- Recency
- Kimi K3.1 Pro shipped 7 days after Beam 1.0 (2026-10-23 vs 2026-10-16).
Full spec
| Attribute | Kimi K3.1 Pro | Beam 1.0 |
|---|---|---|
| Developer | Moonshot AI | Reflection |
| Released | 2026-10-23 | 2026-10-16 |
| Context window | 1,048,576 tokens ([source](../../sources/blogs/moonshot-2026-10-24-k3-pricing.md)) | 1M tokens |
| Pricing | $2.00/MTok input · $10.00/MTok output · $0.20/MTok cached input; cache writes $2.00/MTok (5m), $4.00/MTok (1h); excludes taxes ([source](../../sources/blogs/moonshot-2026-10-24-k3-pricing.md)) | not recorded |
| License | not recorded | Apache 2.0 |
| Availability | Kimi.ai, mobile apps, Kimi Work, Kimi Code, Kimi API; enterprise access off by default at launch ([source](../../sources/blogs/moonshot-2026-10-23-kimi-k3-1-pro.md)) | Open weights; Reflection API public beta; partner endpoints |