kolm vs Predibase.
Predibase pioneered LoRA-Land and multi-LoRA serving in 2024. Their LoRAX server is a real piece of infrastructure. Where we differ is in what comes out of the compile: we ship a single signed artifact, not a deployed endpoint, and the artifact carries its own receipt.
Eleven axes. Reviewed 2026-05-15.
| Axis | kolm | Predibase | Why it matters | Proof |
|---|---|---|---|---|
| What you ship | signed .kolm file | VPC-deployed endpoint | A file moves with the work. An endpoint requires a network round trip. | anatomy → |
| Run location | local + cloud + edge | their VPC or yours | Edge fleets and on-device require the artifact pattern. | /edge → |
| Multi-LoRA serving | CID-keyed adapter pool (S-LoRA) | yes, LoRAX server | Both shops solved this. CID keys give us receipt-traceable composition. | paper → |
| Receipt chain | HMAC-SHA256 per inference | none | Auditors want a primitive, not a dashboard. | receipt JSON → |
| K-score gate | compile-time blocking, formula public | eval metrics in console | A gate that blocks a compile is a contract. | K-score formal → |
| Reference open spec | RS-1 public | proprietary | Open spec means you can verify with a 262-line TypeScript SDK that has no third-party runtime deps. | RS-1 → |
| Quantization stack | INT4 / INT8 / NVFP4 | yes | Both shops invested. Ours is baked into the artifact at compile time. | NVFP4 → |
| Synthetic data pipeline | Magpie, Evol-Instruct, Self-Instruct, RAFT, MinHash dedup | basic | Most teams blow their training budget on bad data. | ingest pipeline → |
| Algorithms | DPO, KTO, ORPO, SimPO, IPO, GRPO, online-DPO, RM, federated, distillation, MoE-LoRA | SFT, DPO | 11 alignment methods cover more buyer-side task shapes. | /research → |
| Vendor exit | file on disk, RS-1 spec | re-deploy | If you change vendors the artifact still runs. | /spec → |
| Browser / TS SDK | Python + TypeScript + CLI | Python only | Front-end teams need TS; mobile teams need RN. | /sdks → |
When Predibase is the right answer.
Enterprise procurement wants a vendor with a Series B / C check, a dedicated VPC SKU, and a sales team. Predibase has all three. If your buyer's procurement asks "where is the company headquartered and what is their MRR," they are a strong fit.
When kolm is the right answer.
Your team is technical enough to consume a signed file and run it themselves, or your workload is edge / multi-tenant in a way that endpoint deployment does not address. The receipt chain and CID-keyed adapter pool become load-bearing the moment you have more than one task in flight.