About AI Agent Hub
AI Agent Hub is an independently operated reference site for developers comparing AI model APIs and agent workflows. Its useful core is intentionally narrow: source-linked model data, transparent calculators, and practical explanations.
What we publish
We publish provider pricing snapshots, context limits, clearly attributed benchmark tables, calculators, and reviewed technical guides. We do not claim that a price snapshot predicts every reader's monthly bill, and we do not present vendor benchmark numbers as tests run by this site.
How the price data is verified
A pricing table is only worth publishing if a reader can reproduce it, so the catalogue follows a fixed procedure rather than being assembled from memory or from third-party trackers.
- Read the provider's own documentation. Announcement posts, aggregator sites and price-tracking services are not accepted as sources.
- Where two of a provider's own pages disagree, follow the pricing page. This is not a hypothetical rule: Anthropic's Sonnet 5 announcement still carried a "through August 31" introductory note after its pricing page had confirmed the scheduled increase would not occur. The billing page is authoritative.
- Record the rates that actually move a bill, not just the headline pair. Cache-read rates, long-context multipliers and cache-write charges are captured alongside input and output, because the headline pair alone produces wrong budgets.
- Re-check on a schedule and publish what changed. Prices drift; a catalogue that is not re-read is a liability rather than an asset.
How much drift matters is not theoretical. The 18 September 2026 re-check against provider documentation found nine of the ten catalogue entries out of date, including one rate overstated by a factor of five.
Public correction record
Corrections are listed here rather than applied silently. If a figure on this site was wrong, the wrong value and its replacement both belong in the open.
| Date | What changed |
|---|---|
| 18 Sep 2026 | Full catalogue refresh against provider documentation. Gemini 3.6 Flash replaced by 3.8 Flash; DeepSeek V4 Flash by V4.1 Flash; Claude Fable 5 by Fable 5.1. GPT-6 Astra and Gemini 3.1 Pro added. |
| 18 Sep 2026 | Corrected three OpenAI rates: Sol $5/$30 to $4/$20 (promotional, to 21 Nov 2026), Terra $2.50/$15 to $2/$12, Luna $1/$6 to $0.20/$1.20. The Luna figure was overstated fivefold. |
| 18 Sep 2026 | Removed the scheduled Claude Sonnet 5 increase to $3/$15. Anthropic's pricing page states the increase will not occur and that $2/$10 is now the standard rate. A flag on that row was lifted only after the pricing page was read directly. |
| 18 Sep 2026 | Removed advertising code and ad placements from four archived pages that had already been withdrawn from search indexing. |
| 18 Sep 2026 | Corrected advertised reading times across the library; they had been set two to three times above the actual length of each article. |
Editorial process
- Collect: start with provider documentation or an original project specification.
- Record: save the source, verification date, units, temporary-price conditions, and known caveats.
- Review: check calculations, links, page rendering, and whether a claim says more than its source supports.
- Correct: investigate documented correction reports and update the date when a data snapshot changes.
AI tools may assist with research organization, drafting, coding, or quality checks. Publication decisions, source selection, and corrections remain the responsibility of the site operator. See the detailed methodology and AI-use disclosure.
Independence and funding
AI Agent Hub is not an official publication of Anthropic, OpenAI, Google, DeepSeek, or other covered providers. The site may display advertising, including Google AdSense if approved. Sponsored or affiliate relationships, if introduced, will be labeled near the relevant content. Commercial relationships do not purchase favorable rankings.
Scope limits
This site does not provide legal, security, procurement, or financial guarantees. Provider terms, regional availability, taxes, rate tiers, and prices can change. Readers should confirm material decisions on the linked official source.
Corrections and contact
Send the page URL, disputed statement, and supporting source through the contact page. We prioritize errors that affect price calculations, security guidance, or product availability.