Independent capability registry · v0.1
Last research pass
Know what AI
actually supports.
Product. Plan. Platform. Evidence. Feature State tracks the conditions that turn a tempting “yes” into a useful answer.
01 / Live matrix
Six products.
Four decisive states.
A dot never means “yes everywhere.” Open any state to see the plan, platform, conditions, and evidence.
| Product | MCP client | Browser control | Terminal access | Background agents |
|---|---|---|---|---|
| 01ChatGPT | Plans | Plans | Unknown | Unknown |
| 02Claude | Yes | Unknown | Unknown | Unknown |
| 03Perplexity | Plans | Plans | Unknown | Plans |
| 04Codex | Yes | Beta | Yes | Yes |
| 05Cursor | Yes | Conditional | Yes | Yes |
| 06GitHub Copilot | Yes | Conditional | Yes | Yes |
90 currently have primary evidence. Unknown records are visible as research gaps, not negative claims.
02 / Direct answers
Questions people ask.
Answers sources can defend.
Every compatibility page opens with the answer, qualification, verification date, and primary evidence.
03 / Change record
Capability states
have a history.
We keep the previous state, new state, date, and source instead of quietly rewriting a table.
| Product | State | Scope | Evidence | Verified |
|---|---|---|---|---|
| ChatGPT | Selected plans | Product-wide | 1 primary | |
| Gemini Code Assist | Experimental or beta | Product-wide | 1 primary | |
| Codex | Experimental or beta | Codex app | 1 primary | |
| Perplexity | Selected plans | Product-wide | 1 primary |
04 / Research standard
“Unknown” is more honest than a guessed no.
Feature State separates missing evidence from unsupported behavior. We capture the product surface, plan, platform, source, confidence, and access date behind every classified state.
Read the full methodologyFind primary evidence
Official docs, support pages, release notes, and repositories come first.
Scope the exact claim
Product, plan, platform, region, and rollout are kept separate.
Classify confidence
Evidence quality and ambiguity determine high, medium, or low confidence.
Preserve the change
Updates append history instead of erasing the prior state.
Start with a comparison