$ diff kolibri-1 k2-horizon
Kolibri-1 vs K2 Horizon
Values come from Kolibri-1 and K2 Horizon, 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.
Aleph AlphaKolibri-1
- context
- 16K
- weights
- open
- $/M in
- —
- $/M out
- —
- context
- 524K
- weights
- open
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- K2 Horizon takes 524K against 16K — 32× more room in a single request.
- Weights
- Both publish weights — Kolibri-1 under Apache 2.0, K2 Horizon under Apache 2.0 (weights and code). Check the licences rather than assuming they permit the same commercial use.
- Recency
- Kolibri-1 shipped 30 days after K2 Horizon (2026-10-03 vs 2026-09-03).
Full spec
| Attribute | Kolibri-1 | K2 Horizon |
|---|---|---|
| Developer | Aleph Alpha | Ifm |
| Released | 2026-10-03 | 2026-09-03 |
| Context window | 16,384 tokens native; up to 1,048,576 extended | 524,288 (flagship 375B-A23B, native from midtraining onward) |
| Pricing | not recorded | not recorded |
| License | Apache 2.0 | Apache 2.0 (weights and code) |
| Availability | full weights on Hugging Face | Hugging Face (weights, code, checkpoints, training data where redistributable) |