A.X K2
Released
2026-07-29
Last refreshed
2026-09-04
Status
Researched 15d ago
Open sourceCommercial use: permittedLong context
A.X K2 is a released long context model with open-source and 262k context; evaluate it while provider pricing coverage matures.
Use it for
- Teams evaluating long context
- Workloads that can use a 262k context window
Do not use it for
- Cost-sensitive launches that need sourced token pricing
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
Specifications
- Family
- A.X
- Released
- 2026-07-29
- Context
- 262k
- Parameters
- 688B total, 33B active
- Openness
- Open source
- License
- Apache 2.0OSI-approvedCommercial use: permitted
- Weights
- Available
- Code
- Unknown
Created by
Pricing
No tracked provider token pricing is available yet.
About
A.X K2 is SK Telecom's mixture-of-experts language model released July 29, 2026 with 688B total / 33B active parameters and a 262,144-token context window. Weights are on Hugging Face at skt/A.X-K2.
Top use-case fit
Long context
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
No model capability flags are currently sourced.
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Created by
Pricing
No tracked provider token pricing is available yet.