$ diff k2-horizon glm-5-3-flash
K2 Horizon vs GLM-5.3-Flash
Values come from K2 Horizon and GLM-5.3-Flash, 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.
IfmK2 Horizon
- context
- 524K
- weights
- open
- $/M in
- —
- $/M out
- —
- context
- 1.0M
- weights
- open
- $/M in
- $0.15
- $/M out
- $0.5
What actually differs
- Context window
- GLM-5.3-Flash takes 1.0M against 524K — 2× more room in a single request.
- Weights
- Both publish weights — K2 Horizon under Apache 2.0 (weights and code), GLM-5.3-Flash under MIT. Check the licences rather than assuming they permit the same commercial use.
- Recency
- K2 Horizon shipped 8 days after GLM-5.3-Flash (2026-09-03 vs 2026-08-26).
Full spec
| Attribute | K2 Horizon | GLM-5.3-Flash |
|---|---|---|
| Developer | Ifm | Z.ai |
| Released | 2026-09-03 | 2026-08-26 |
| Context window | 524,288 (flagship 375B-A23B, native from midtraining onward) | 1,048,576 (1M) |
| Pricing | not recorded | $0.15/M input · $0.03/M cached input · $0.50/M output |
| License | Apache 2.0 (weights and code) | MIT |
| Availability | Hugging Face (weights, code, checkpoints, training data where redistributable) | Hugging Face (open weights), Z.ai API |