Each SKU’s page shows its full price history. Before we started checking, it comes from the Internet Archive’s copies of the lab’s own pricing page.
How far back each lab’s price history reaches
Lab
History from
Internet Archive copies read · skipped
We check it since
Gaps before that
OpenAI
2023-03-07 – 2026-08-06 · 107 read · 3 skipped
2025-02-01 – 2026-02-01: From February 2025 the Archive’s copies of openai.com/api/pricing hold only the page shell, then a short list of flagship models by marketing name (“GPT-4.1”, “OpenAI o3”). That list isn’t the price list, so we don’t read it. The copies of platform.openai.com/docs/pricing and its model pages are script shells with no prices.
Anthropic
2024-03-04 – 2026-06-11 · 82 read · 10 skipped
2023-01-01 – 2024-03-01: Anthropic published Claude 2 prices as a PDF rate card. The Archive’s copies of anthropic.com/product and the docs’ model pages from 2023 show no prices as text.
Google
2024-06-15 – 2026-08-23 · 98 read · 18 skipped
2023-01-01 – 2024-06-15: Until January 2024 the Archive’s copies of ai.google.dev/pricing show no prices. Until April 2024 Gemini was priced per 1,000 characters, and we don’t convert units. The Gemini 1.5 prices shown in April and May 2024 weren’t billed yet (“Billing starts May 30, 2024”).
xAI
2025-03-20 – 2026-08-23 · 18 read · 23 skipped
2023-01-01 – 2025-03-20: Until March 2025 x.ai/api showed no per-token prices, and the Archive’s copies of docs.x.ai from that time show none either.
2025-04-17 – 2025-07-28: From April 2025 x.ai/api lists only its featured models and hides the rest behind a button the Archive didn’t save. Read as a price list, the hidden models would look dropped. docs.x.ai’s copies show no prices until late July 2025.
2025-12-21 – 2026-03-12: From late December 2025 the Archive’s copies of docs.x.ai hold the price table before its scripts filled it in, and x.ai/api still lists featured models only. The markdown version starts 2026-03-12.
Meta
Meta had no API price list of its own before the page we check now.
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Mistral
2024-02-26 – 2025-02-03 · 33 read · 5 skipped
2023-01-01 – 2024-02-26: Until late February 2024 docs.mistral.ai priced the API in euros only. We store prices as printed and don’t convert currencies.
2025-02-04 – 2026-08-25: From March 2025 mistral.ai/pricing lists prices by product name (“Mistral Medium 3”) with no API model name, and we don’t guess which model a name means. The Archive’s first copy of the docs price list is from 2026-08-13, as HTML we don’t read.
Data from the last 90 days is CC BY 4.0. Older data is CC BY-NC 4.0, except what we published before 2026-11-04, which stays CC BY 4.0. How you can reuse it.