AI & model limits
Context windows, output, uploads, and API throughput.
Every displayed current value links to the official source.
Source-backed developer reference
Know the limit before you hit it.
Live limits, quotas, errors and changes across AI, cloud and developer platforms.
173 current observationsStructured and reusable
83 official sourcesVisible beside claims
152 reviewed lookupsNo keyword-variant sprawl
Browse the database
Start with the technology layer
Each category connects platform hubs, specific constraints, errors, comparisons, and tools.
Recently verified
Current values, source attached
These are data records rendered across lookup pages, comparisons, errors, and tools—not copied facts in separate articles.
02ChatGPT · General per-file hard limitApplies to files uploaded to a GPT or ChatGPT conversation; more restrictive type-specific limits can apply first.512 MBOpenAI
05AWS Lambda · Function timeoutA function-level configuration ceiling; the configured timeout may be lower.900 seconds (15 minutes)Amazon Web Services
Use the data
Free tools for the decision in front of you
Deterministic calculators use the same reviewed observations as the reference pages.
Change intelligence
Keep the old value. Record the new one.
HyperObserve uses append-only observations, so verified history is preserved instead of silently overwritten.
2026-06-15
Eligible Vercel Functions increased to 30 minutes
Vercel announced a beta 1,800-second maximum for Pro and Enterprise Node.js and Python Functions using Fluid compute and maxDuration opt-in.
Built for verification
Official docs are authoritative. HyperObserve makes them comparable.
Direct answer + normalized structure + verification date + visible source + related error + useful next step.