Tools
Evidence ledger
AI price changes
Every official price we track carries a confidence grade and a change history. This is the ledger: what changed, by how much, and from which source — tracked since 2026-05-30.
Confidence of 296 tracked prices
A+200
A85
C10
D1
Grades are derived, never hand-set: A+ reads from a provider's official pricing page, A from official docs, C from scraper/LLM extraction, D unverified. Hover any grade in the pricing index to see why.
Change timeline
12 recorded changes| Model | Field | Was | Now | Change | When | Source |
|---|---|---|---|---|---|---|
| input | — | $0 | new | 2026-06-01 | source | |
| input | — | $0.600 | new | 2026-06-01 | source | |
| input | — | $0.300 | new | 2026-06-01 | source | |
| input | — | $0.300 | new | 2026-06-01 | source | |
| input | — | $0.300 | new | 2026-06-01 | source | |
| input | — | .20 | new | 2026-06-01 | source | |
| input | — | $0.450 | new | 2026-06-01 | source | |
| input | — | .80 | new | 2026-06-01 | source | |
| input | — | $0.300 | new | 2026-06-01 | source | |
| input | — | .20 | new | 2026-06-01 | source | |
| input | — | $0.450 | new | 2026-06-01 | source | |
| input | — | .80 | new | 2026-06-01 | source |