kitio.aiBifrost vs Stacklok
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Bifrost starts at See pricing page and Stacklok starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Drop-in SDK replacement
- Multi-provider routing
- Budgets and virtual keys
- Guardrails
- MCP gateway
- OpenTelemetry metrics and traces
- MCP registry
- MCP gateway
- MCP runtime
- AI gateway
- Kubernetes-native deployment
- Open-source agent harness
| Feature | Bifrost | Stacklok |
|---|---|---|
| Best for | Open-source AI gateway for routing, governing and monitoring LLM calls | Kubernetes-native MCP and AI gateway platform for enterprise agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | Maxim AI | Stacklok |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Both offer: MCP gateway.
Pricing compared
Bifrost starts at See pricing page and Stacklok starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
OSS
Free
- Self-hosted via Docker, K8s or binary
- Drop-in SDK replacement
- OTel metrics and traces
- Community support
Enterprise
Contact sales
- 14-day free trial
- Licensed enterprise features
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Bifrost
- Free open-source self-hosted version
- One-line switch from provider SDKs
- Low added latency per request
- Enterprise pricing requires contacting sales
- Self-hosting needs ops work
- Governance features sit in Enterprise
Stacklok
- Built by Kubernetes co-creators
- Avoids lock-in to one model vendor
- Fits existing Kubernetes ops
- Requires Kubernetes expertise
- Enterprise pricing not published
- Aimed at platform teams, not end users
Which one should you choose?
Choose Bifrost if you want:
- Free open-source self-hosted version
- One-line switch from provider SDKs
- Low added latency per request
Watch out: enterprise pricing requires contacting sales.
Choose Stacklok if you want:
- Built by Kubernetes co-creators
- Avoids lock-in to one model vendor
- Fits existing Kubernetes ops
Watch out: requires kubernetes expertise.
Bifrost vs Stacklok FAQ
What is the difference between Bifrost and Stacklok?
Bifrost: Open-source AI gateway for routing, governing and monitoring LLM calls. Stacklok: Kubernetes-native MCP and AI gateway platform for enterprise agents. Both are models & apis tools.
Is Bifrost or Stacklok cheaper?
Bifrost starts at See pricing page and Stacklok starts at See pricing page. Check both pricing pages for current plans.
Do Bifrost and Stacklok have free plans?
Bifrost: Yes. Stacklok: Yes.
Who makes Bifrost?
Bifrost is made by Maxim AI.
Who makes Stacklok?
Stacklok is made by Stacklok, based in United States.
Which should I choose, Bifrost or Stacklok?
Choose Bifrost if you value free open-source self-hosted version and one-line switch from provider sdks. Choose Stacklok if you value built by kubernetes co-creators and avoids lock-in to one model vendor.