Suite agent-surfaces-v4: direct evaluation, discovery, comparison, trust, purchase, and implementation.
Panel ChatGPT Free, ChatGPT Paid, Gemini, and Claude surfaces using Luna, Sol, Gemini 3.7 Flash, and Opus.
Observer OpenAI GPT-5.6 Sol · medium reasoning classifies the preserved participant records after each decision.
Trace Citation-level records, model usage, cache usage, tool counts, duration, and cost are persisted per participant.
Comparison Only complete six-of-six panels enter the version trend. Dynamic models and indexes make the study auditable rather than bit-for-bit replayable.
Cost scope Run totals include participant and observer model charges. Firecrawl credit pricing is tracked separately by its provider.