AI Chat & Search
Chat interfaces and AI search tools — assistants you talk to, and engines that answer a query with sources instead of ten blue links (4 entries). This category is small on the site on purpose: most of the big names are covered inside the roundup and comparison pages where they are measured against each other, and the individual entries here are for products that earn their own page by doing something specific — a different data source, a different privacy posture, a different price. The questions each entry answers are the usual three: what the free tier allows before it stops you, what the paid plan costs, and whether your conversations are used for training. Pricing comes from the vendor's own page with the date it was checked; where a product's terms are ambiguous, the entry quotes them rather than summarising them. Ratings only appear where a hands-on run backs them up, which in this category means a couple of pages — the rest state their evidence level and stop there.
Price snapshot
Every entry in this category as one row, in the same newest-first order as the cards below. The price column is the opening line of what we captured from the vendor’s own page — hover or focus a cell for the complete wording, which is never rewritten — and the last column is the day that price was checked.
| # | Tool | Evidence | Price as published | Price checked |
|---|---|---|---|---|
| 1 | AMD Radeon Token Factory: A Free OpenAI-Compatible Model API | Official prices checked | Free tier with daily account spend cap | 2026-09-07 |
| 2 | Keenable: Web Search API for Agents, 100K Free Monthly Calls | Official prices checked | Free: 100K requests/mo | 2026-10-14 |
| 3 | ChatGPT vs Claude vs Gemini: 2026 Prices and Limits | Official prices checked | $20/mo | 2026-08-29 |
| 4 | Perplexity Pricing 2026: Free vs Pro $20 vs Max $200 | Official prices checked | Free $0 | 2026-10-16 |
AMD Radeon Token Factory: A Free OpenAI-Compatible Model API
AMD's Radeon Cloud gives every developer account a free OpenAI-compatible model API — auto-issued key, 30 RPM per key, daily spend cap reset at midnight Beijing time. Rate limits verified from official docs 2026-09-07.
Keenable: Web Search API for Agents, 100K Free Monthly Calls
Keenable sells web search as an API for AI agents: 100K free requests per month, then $4 per 1,000 requests pay-as-you-go, with no annual commitment or seat minimum.
ChatGPT vs Claude vs Gemini: 2026 Prices and Limits
ChatGPT vs Claude vs Gemini on their paid tiers: real limits, recent price moves and which one fits which job - terms and prices checked late August 2026.
Perplexity Pricing 2026: Free vs Pro $20 vs Max $200
Perplexity's July 2026 repack in plain numbers: Free $0, Pro $20/mo, Max $200/mo, weekly caps instead of 'unlimited' - checked vs official pages.