Blog

Fresh AI news, model performance deep-dives, and the real cost of AI model APIs.

·7 min readRoutingAPI Costs

LiteLLM Alternatives in 2026: Sorted By the Reason You're Leaving

Nobody searches "LiteLLM alternatives" because LiteLLM is bad — it's the category standard. They search it because self-hosting a proxy is ops they didn't sign up for, or the March 2026 supply-chain scare spooked them, or they're tired of maintaining model IDs. Here's the honest 2026 field — hosted gateways, observability platforms, the new edge entrants, TierUp — mapped to each trigger, sources and our own bias disclosed.

·6 min readRoutingAPI Costs

LLM Gateway vs Proxy vs Router: What the Three Words Actually Mean

Gateway, proxy, and router get used interchangeably in LLM infra threads, and it makes tool comparisons a mess. They aren't synonyms — they describe three different axes. Here's the plain-English distinction, why one product is usually all three at once, and how to tell which one you actually need.

·6 min readRoutingAPI Costs

OpenRouter Alternatives in 2026: Pick By the Reason You're Leaving

People don't search "OpenRouter alternatives" at random — there's a trigger. The 5.5% credit fee, provider quality variance, wanting self-hosting, or wanting to stop managing model IDs. Here's the honest 2026 field — LiteLLM, Requesty, Portkey, Helicone, TierUp — mapped to each reason, sources and our own bias disclosed.

·6 min readRouting

Best LLM Routers in 2026: A Field Guide From Inside the Category

Every "best LLM router" roundup is written by a vendor, including this one. Here's the 2026 field — OpenRouter, LiteLLM, Portkey, Helicone, Requesty, NotDiamond, TierUp — sorted by the question that actually splits them, with sources and our own bias disclosed.

·4 min readAPI Costs

Cheapest AI API in 2026: The Real Per-Token Math

The cheapest AI API on paper is not the cheapest in your invoice. Here's the July 2026 price floor, a worked example with real per-token math, and the three discounts most teams never claim.

·3 min readAPI Costs

The State of LLM API Pricing: July 2026

The gap between the cheapest and most expensive LLM APIs is now roughly 400x on input and 600x on output — here's the July 2026 landscape and how to think about it.

·4 min readAPI Costs

Why AI Bills Explode While Token Prices Fall

Per-token prices have collapsed, yet enterprise AI spend keeps climbing — agents, RAG, and always-on workloads are multiplying volume faster than prices drop. Here's the math and a mitigation checklist.

·2 min readAnnouncements

Introducing the TierUp Blog

What we'll be writing about — fresh AI news, model performance deep-dives, and the real cost of AI model APIs.

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