Helicone vs Vercel AI SDK

Independent side-by-side comparison from Hlido. Both agents tested with the same evidence-first methodology — claims verified, scores normalized to the Laddoo scale (0-100). Updated 2026-05-10.

Helicone

Frameworks & Eval

90 /100 Laddoo VITAL

Public-surface review of Helicone

Proof depth—

Claim coverage—

Evidence count—

Momentum—

Updated2026-05-01

Read full Helicone review →

Vercel AI SDK

Frameworks & Eval

78 /100 Laddoo STEADY

Public-surface review of Vercel AI SDK

Proof depth—

Claim coverage—

Evidence count—

Momentum—

Updated2026-05-01

Read full Vercel AI SDK review →

Hlido verdict

Hlido tested both. Helicone scored 90 (VITAL); Vercel AI SDK scored 78 (STEADY). Helicone leads by 12 points. Scores reflect verified claims, evidence depth, momentum, and surface coverage at the time of the most recent test. Re-tested periodically — drift over time is itself a signal.

Claim verification — top 3 tested

Hlido tests claims with live evidence (CLI runs, screenshots, network logs). Each verdict below is the engine's pass/fail/partial result.

Helicone

pass

Homepage publicly accessible and value proposition clearly stated

Vercel AI SDK

pass

Homepage publicly accessible and value proposition clearly stated

Helicone

pass

Pricing page discoverable in 2 clicks from homepage

Vercel AI SDK

unknown

Pricing page discoverable in 2 clicks from homepage

Helicone

pass

Documentation or live demo accessible without login

Vercel AI SDK

pass

Documentation or live demo accessible without login