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Who Owns Your LLM Router in 2026? (Maintained Ownership Table)

Three of the routers and gateways developers leaned on in 2025 changed hands in 2026. OpenRouter is being folded into Stripe, Portkey now sits inside a security giant, and Helicone is in maintenance mode under Mintlify. Ownership decides the roadmap, and the roadmap decides whether your gateway is still built for the job you picked it for. This is a plain, sourced table of who owns what, kept current as the next deal lands.

By Roman Rose, Founder, Parity Layer9 min read

Key takeaways

  • Three major router and gateway deals landed in 2026: Stripe is acquiring OpenRouter for more than $7bn (Bloomberg, reported 16 August, announced 19 August), Palo Alto Networks completed its acquisition of Portkey on 29 May, and Mintlify acquired Helicone in March.
  • Ownership sets the roadmap. Portkey now serves Palo Alto's Prisma AIRS agent-security agenda, Helicone is in maintenance mode with security and bug fixes only, and OpenRouter is becoming the billing rail inside Stripe.
  • LiteLLM, Requesty, Not Diamond, Martian and Cloudflare AI Gateway remain independent or first-party, each with its own trade-offs. LiteLLM had a March 2026 PyPI supply-chain compromise that was fixed in version 1.83.0.
  • None of these deals touched the one thing a router still does not do: prove the cheaper model it routes to is actually good enough on your prompts before it switches. That gap is still yours to close.
  • Parity Layer is not a catalogue router and did not change hands. It proves a cheaper model matches or beats the one you run now on your own prompts, then cuts cost 30 to 60% on the prompts that pass. Not built for coding agents; you can prove it offline first on a JSONL export.

Three of the routers and gateways developers relied on in 2025 changed owners in 2026. Stripe is acquiring OpenRouter for more than $7bn (Bloomberg, reported 16 August, announced 19 August), Palo Alto Networks completed its acquisition of Portkey on 29 May, and Mintlify acquired Helicone in March. If you are trying to work out what that means for the gateway you already depend on, the short version is: ownership sets the roadmap, and the roadmap decides whether your router is still built for the job you picked it for.

This page is a plain, sourced table of who owns what, and what each deal actually changed. I keep it current as the next deal lands, because in this market there is always a next deal.

Who owns your LLM router in 2026?

Router / gatewayOwner (September 2026)The dealDateWhat changed for you
OpenRouterStripeAgreed acquisition, more than $7bnAnnounced 19 Aug 2026Becoming the billing and access rail inside Stripe. The 400+ model catalogue keeps working; the roadmap now answers to a payments company.
PortkeyPalo Alto NetworksCompleted acquisitionClosed 29 May 2026Folded into Prisma AIRS. Roadmap pivots to securing and governing AI agents, not cost routing.
HeliconeMintlifyAcquiredMarch 2026Maintenance mode: security updates, bug fixes and new models, no major new features. Mintlify will help customers migrate.
LiteLLM (BerriAI)IndependentOpen sourcen/aStill independent and free to self-host. Had a PyPI supply-chain compromise in March 2026, fixed in 1.83.0. The infra and security burden is yours.
RequestyIndependentn/an/aIndependent gateway, roughly a 5% markup on inference.
Not DiamondIndependentn/an/aIndependent learned router; picks a model per prompt on predicted quality, before the answer exists.
MartianIndependentn/an/aIndependent router focused on model selection.
Cloudflare AI GatewayCloudflareFirst-party productn/aFree managed gateway inside Cloudflare's platform, not an acquisition.
Parity LayerIndependentn/an/aNot a catalogue router. Proves a cheaper model holds quality on your own prompts before switching, then cuts cost 30 to 60% on the prompts that pass.

Sources for each deal are linked at the foot of this page. If you spot a change I have missed, the table is meant to be corrected.

Why ownership changes the product you are using

A gateway does what its owner needs it to do. That is not cynicism, it is how roadmaps get funded.

When a payments company buys the router, the router gets very good at metering and billing inference, because that is the business Stripe is in. OpenRouter was already the balance and the meter in front of the model catalogue, so this is a natural fit, and for access and failover it stays useful. What a payments owner has no reason to build is per-prompt quality verification, because that was never the product.

When a security company buys the gateway, the gateway gets very good at governance. Palo Alto Networks did not buy Portkey to help you shave 30 to 60% off your inference bill. It bought a control plane to inspect, govern and secure AI agents at enterprise scale, which is exactly what its own announcement describes. If you adopted Portkey as a cost-and-observability tool, you are now a smaller part of a bigger security story.

And when a gateway goes into maintenance mode, it optimises for nothing new. Helicone under Mintlify still gets security updates and bug fixes, which is honest and more than some acquired tools offer, but "no major new features" is a real signal if you are choosing where to build for the next two years.

The half none of these deals bought

Here is the thing worth noticing across all three. Not one of these acquisitions closed the gap that actually costs teams money: none of them proves the cheaper model the router picks is good enough on your prompts before it switches.

A router, whoever owns it, decides on price, latency, uptime or a general benchmark, before it has seen the answer. That is the design, and for reaching a cheaper model quickly it works. But it means the router never checks whether the cheaper model it just chose held up on your specific traffic. You save on the invoice and, on the prompts where the cheaper model quietly got worse, you ship a degraded product you never measured. I wrote about that failure mode in how to route between LLMs to save money, and it is the same gap whether the router is owned by Stripe, Palo Alto or nobody.

Proving it is a separate job from routing. You run the cheaper model against the model you use now, on your own prompts, judge the outputs blind against your baseline's own run-to-run consistency, and switch only the prompts that clear the bar, with an instant fallback the moment quality drifts. That is where the honest saving comes from, and it is the number I keep public: across 16,764 blind comparisons on real production prompts from 145 companies, run between 27 March and 3 August 2026, the cheaper model held or beat the more expensive model it replaced 85.5% of the time (77.5% matched, 8.0% beat it, 14.5% failed to hold and stayed on the original). You can browse the live ranking by model and task on the Parity Index.

So what should you actually do?

Keep your router for what it is good at. If you need the widest model menu behind one endpoint with pooled uptime, OpenRouter is still that, Stripe or not. If you need enterprise governance and you are already a Palo Alto shop, Portkey inside Prisma AIRS may fit. If you are on Helicone, plan for maintenance mode rather than a growing roadmap.

Then add the step none of them do. Before you trust any cheaper model in production, prove it holds on your own prompts. The router picks; the proof decides.

You can do the proof before you touch a line of code. Export a JSONL of past requests and run a cheaper model against your current one offline, so nothing in production moves until you have the evidence. If you want to see how much you are overspending on your AI API bill and which cheaper models actually hold on your own traffic, that is exactly what the proof report is for. It is deliberately not built for coding agents; it is for the high-volume production prompts where a proven switch is money you keep.

For the wider picture, see the survey of the best LLM routers and honest alternatives, and the migration-specific guides for OpenRouter, Portkey and Helicone. For the cost side, start with the LLM cost optimisation guide.

FAQ

The questions I get asked most about these deals are answered in the FAQ above: who owns OpenRouter now, who owns Portkey after the Palo Alto Networks acquisition, whether Helicone is still maintained, which routers are still independent, and whether ownership actually matters. The short answer to the last one is yes, because ownership sets the roadmap, and no owner on this list is building the proof step for you.

Frequently asked questions

Who owns OpenRouter now?

Stripe. It announced on 19 August 2026 that it is acquiring OpenRouter for more than $7bn, after Bloomberg reported the deal on 16 August. That is roughly a 5x step up from the $1.3bn valuation OpenRouter raised at in its May 2026 Series B, three months earlier. Practically, Stripe bought the billing and access rail for AI inference: one balance and one API in front of more than 400 models. The catalogue keeps working. What the deal does not add is any check that the cheaper model the router picks is good enough on your traffic.

Who owns Portkey after the Palo Alto Networks acquisition?

Palo Alto Networks. It completed the acquisition on 29 May 2026 and folded Portkey into Prisma AIRS, its AI security platform. The public roadmap is now about securing and governing AI agents at scale, not about proving a cheaper model holds quality. If you adopted Portkey as a cost-and-observability gateway, the owner's priorities have moved towards enterprise agent security, which is worth factoring into a renewal.

Is Helicone still maintained?

It is in maintenance mode. Mintlify acquired Helicone in March 2026 and the founders joined Mintlify. Helicone keeps shipping security updates, bug fixes and new model support, but there is no major new feature development, and Mintlify has said it will help customers migrate. If you are choosing observability today, weigh that against tools with an active roadmap.

Which LLM routers are still independent in 2026?

LiteLLM (BerriAI), Requesty, Not Diamond and Martian are still independent, and Cloudflare AI Gateway is a first-party Cloudflare product rather than an acquisition. Independent is not automatically safer: LiteLLM had a supply-chain compromise on PyPI in March 2026 that was fixed in version 1.83.0, which is a reminder that self-hosting moves the maintenance and security burden onto you.

Does it matter who owns my router?

Yes, because ownership sets the roadmap. A gateway bought by a payments company optimises for billing, one bought by a security company optimises for governance, and one in maintenance mode optimises for nothing new. None of those priorities is proving the cheaper model is good enough on your prompts, which is the check that decides whether routing to save money actually saved you anything. Pick your router for access and failover, and add a proof step before you trust any cheaper model in production.

Sources

  1. 1.Palo Alto Networks Completes Acquisition of Portkey (29 May 2026)
  2. 2.Stripe nears deal to buy OpenRouter for over $7 billion (Bloomberg, 16 Aug 2026)
  3. 3.Stripe didn't really buy OpenRouter because of the 'singularity' (TechCrunch, 19 Aug 2026)
  4. 4.Helicone is joining Mintlify (Helicone blog)
  5. 5.The LLM proxy landscape in 2026: Helicone acquired, LiteLLM compromised

Prove it on your own prompts

See whether a cheaper model matches or beats your output for 30-60% less. Unlimited prompts proven free, no credit card.

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