AI21

What it is for

AI21 Studio is a hosted File Library desk: you upload workspace files, and new accounts get a $10 credit for three months. Use it when the job is a file table you start at a public $, not when you need a $20 chat seat.

What makes it unique: the cover is AI21’s official File Library (3 Documents, AI21-Models-Ter… PDF 394 KB Ready / Terms of Service / Studio UI, HTML 15.3 KB Ready, second PDF 394 KB Ready, 2025 dates) from the docs still on File Library in AI21 Studio — not a pricing card. The rows themselves are ops of File Library.

Key features

• File Library — workspace documents with size / type / labels (cover still; docs). One desk. Cover AI21-Models-Ter… / 394 KB sit here. Add documents / Select all sit here as CTAs, not a sixth desk.
• Playground — a chat next to the library (cover nav; pricing docs). A chat, not a file row.
• Maestro / Agent Builder — agent runs in the same Studio (cover nav Maestro / Agent Builder). An agent, not a PDF cell.
• Data Connectors — sources you attach to the library (docs; cover nav). A connector, not a file row.
• Jamba Playground — foundation-model chat beside File Library (cover nav; Jamba). A model desk, not the library table.

Add documents / Book a demo on the cover are CTAs (not desks). The $10 trial credit and later per-token bills are the meter. SDK / API keys are install, not a sixth desk.

Who it's for

Best fit: developers who will burn the $10 / 3-month credit while they open a first File Library, then add a card and pay the live per-token row on ai21.com/pricing — the public pricing HTML 403’d the day we fetched, so we do not invent a $/1M.

Pricing

Verified 2026-10-23 (Asia/Shanghai) from docs.ai21.com/docs/usage-cost. The marketing ai21.com/pricing page returned 403 to our fetch — quote only what the docs printed.

• Free trial — $10 credit, good for three months, on APIs / SDK / Playground. After the credit or the window, you add billing.
• Subsequent usage — monthly from account creation. Per-token, per K or per M, no rounding. Docs example: 1,500 tokens at $0.10/K = $0.15. That $0.10/K is the worked example, not a live model row.
• Custom plan — large usage. Contact sales on the 403’d pricing page.
• Cloud hosts — SageMaker / Bedrock / Azure set their own $. Confirm the host list.

See usage at Studio Account > Model usage. Confirm checkout; do not invent a Jamba $/1M from the 403 page.

Limitations / costs

• The $10 credit expires in three months. After that you need a card.
• Live $/1M rows were behind a 403. Copy the docs $10 + the $0.10/K example; confirm ai21.com/pricing in a browser.
• A File Library desk, not SambaNova’s Playground. For that Playground see SambaNova.

Alternatives

• SambaNova — a Playground when you want SambaCloud printed $/1M, not AI21’s AI21-Models File Library.
• Groq — a Supported Models table when you want Groq’s public $, not the $10 trial credit.
• Together AI — a hosted catalog when you want Together’s printed cards, not AI21 Studio.

Official tutorial

Official AI21 Labs channel video: YAAP | This Deep Research Agent Ignored the Benchmark and Still Won (oEmbed author: AI21 Labs). First-party agent film; the File Library still is the cover. The research agent on the video is ops of Maestro, not generate-on-File-Library. We searched @AI21Labs / @ai21labs — recent uploads are the YAAP series; this is the official agent film we oEmbedded. @AI21 did not resolve as the product channel.

Written path: docs.ai21.com/docs/usage-cost plus the File Library still.

Website

https://www.ai21.com

Repository

https://github.com/AI21Labs

Source

Catalog row curated for AI Tools Nav. Cover is AI21’s official File Library still (3 Documents + AI21-Models PDF 394 KB + Terms of Service). Dollars checked on docs usage-cost ($10 / 3-month credit; worked example $0.10/K → $0.15). ai21.com/pricing 403’d. Tutorial oEmbed author: AI21 Labs.

Last verified

2026-10-23 (Asia/Shanghai) editorial check.