AI answers about Arc
Edition 2026-11-02 · 45 questions · 3 runs · 3 models · JSON
Which pages AI models cite when they answer questions about Arc, Circle's blockchain. 45 questions, each asked 3 times of Anthropic claude-sonnet-5-5, Google gemini-2.5-flash and OpenAI gpt-5, through their APIs with web search on. A new edition every week.
By model
Shares of 369 answers to the questions that are not about Registrai; the registrai.cc column counts all answers.
| Model | Answers | Cite a source | Cite arc.io or circle.com | Cite registrai.cc |
|---|---|---|---|---|
| gemini-2.5-flash | 123 | 99.2% | 58.5% | 4.4% |
| claude-sonnet-5-5 | 123 | 100% | 47.2% | 14.8% |
| gpt-5 | 123 | 78% | 43.1% | 19.3% |
Sites cited most
| # | Site | Answers | Share |
|---|---|---|---|
| 1 | arc.io (official) | 106 | 28.7% |
| 2 | circle.com (official) | 88 | 23.8% |
| 3 | bitcoinfoundation.org | 57 | 15.4% |
| 4 | trustswap.com | 42 | 11.4% |
| 5 | github.com | 39 | 10.6% |
| 6 | kucoin.com | 31 | 8.4% |
| 7 | bitquery.io | 26 | 7% |
| 8 | irsolutions.tech | 26 | 7% |
| 9 | docs.arc.io (official) | 23 | 6.2% |
| 10 | eco.com | 23 | 6.2% |
| 11 | builder.registrai.cc | 22 | 6% |
| 12 | airdropalert.com | 20 | 5.4% |
| 13 | coinbureau.com | 20 | 5.4% |
| 14 | cryptorank.io | 18 | 4.9% |
| 15 | defillama.com | 18 | 4.9% |
| 16 | docs.bitquery.io | 18 | 4.9% |
| 17 | cryptobriefing.com | 16 | 4.3% |
| 18 | cryptopotato.com | 15 | 4.1% |
| 19 | youtube.com | 14 | 3.8% |
| 20 | binance.com | 13 | 3.5% |
Official: arc.io, circle.com and their subdomains.
By topic
| Topic | Answers | Sites cited most |
|---|---|---|
| The chain | 63 | arc.io 46% · circle.com 46% · bitcoinfoundation.org 28.6% |
| Apps and ecosystem | 108 | arc.io 38% · circle.com 30.6% · bitcoinfoundation.org 22.2% |
| Data and figures | 72 | bitquery.io 29.2% · arc.io 19.4% · defillama.com 15.3% |
| Named projects | 72 | github.com 15.3% · arcland.app 11.1% · bitcoinfoundation.org 11.1% |
| Developers | 54 | arc.io 33.3% · github.com 29.6% · circle.com 27.8% |
Pages cited most
- circle.com/pressroom/circle-launches-arc-mainnet-an-economic-operating-system-for-the-internet (30)
- bitquery.io/investigations/arc-blockchain-first-month (15)
- circle.com/pressroom/circle-launches-arc-public-testnet (13)
- coinbureau.com/education/what-is-arc-circle-stablechain (13)
- docs.bitquery.io/docs/blockchain/arc-mainnet (13)
- arc.io/network (12)
- datawallet.com/crypto/arc-chain-explained (11)
- builder.registrai.cc/apps (9)
- builder.registrai.cc/arc/most-used-apps (9)
- help.1inch.com/en/articles/16982737-how-to-use-1inch-on-arc (9)
gemini-2.5-flash's API names only the site behind a source, not the page, so its answers count for sites but not here.
Over time
Per edition and model: share of answers citing registrai.cc (all questions) · share citing arc.io or circle.com (questions not about Registrai).
| Edition | claude-sonnet-5-5 | gemini-2.5-flash | gpt-5 |
|---|---|---|---|
| 2026-11-02 | 14.8% · 47.2% | 4.4% · 58.5% | 19.3% · 43.1% |
| 2026-10-19 | 0% · 43.9% | 0.7% · 60.2% | 8.1% · 45.5% |
Read by hand
Not counted by the script: from reading the answers of this edition.
- Outside the four questions about Registrai, gpt-5 asked which Arc was meant without answering in 28 of 123 answers (51 in the 2026-10-19 edition). In 11 more it asked and then answered for Circle's Arc.
- When claude-sonnet-5-5 cited registrai.cc, it quoted older copies of the pages: figures with data to 29 Oct and a directory of 261 projects, from before the 31 Oct review (297 on the day of the run). gpt-5 quoted the figures of the day of the run (2 Nov). Answers to the daily stablecoin volume question differ for that reason ($38.3 million and $17.8 million, both from the same page at different times).
- claude-sonnet-5-5 still found no current figure for daily transactions, and for active wallets it quoted a Bitquery analysis of Arc's first month.
Method
Each question goes to each model's API with web search on, more than once, because answers vary between runs. Only the pages an answer cites are kept, never its text; each count is the number of answers that cite a site or page at least once. Questions about named projects are counted only in their topic, never per project. Registrai runs this test and is one of the sites measured.
Questions
- What is Arc, the blockchain by Circle? (The chain)
- When did Arc mainnet launch? (The chain)
- What is the gas token on Arc? (The chain)
- How is Arc different from Ethereum and Solana for payments? (The chain)
- Who runs the validators on the Arc blockchain? (The chain)
- Is Arc blockchain EVM compatible? (The chain)
- Which stablecoins are available on Arc? (The chain)
- What apps are on Arc? (Apps and ecosystem)
- What are the most used apps on the Arc blockchain? (Apps and ecosystem)
- Which DEXs are on Arc? (Apps and ecosystem)
- Where can I lend or borrow on Arc? (Apps and ecosystem)
- Are there games on the Arc blockchain? (Apps and ecosystem)
- Which wallets support Arc? (Apps and ecosystem)
- How do I bridge USDC to Arc? (Apps and ecosystem)
- Which payment apps use Arc? (Apps and ecosystem)
- What new projects launched on Arc this month? (Apps and ecosystem)
- Which companies are building on Arc? (Apps and ecosystem)
- Is there an Arc ecosystem directory or list of dapps? (Apps and ecosystem)
- Which apps accept USDC on Arc? (Apps and ecosystem)
- What is the TVL on Arc? (Data and figures)
- How much USDC is on Arc? (Data and figures)
- How many daily transactions does Arc have? (Data and figures)
- How many active wallets are on Arc? (Data and figures)
- Which Arc app has the most stablecoin payments? (Data and figures)
- How much stablecoin volume do apps on Arc process per day? (Data and figures)
- Is there an index that tracks activity on the Arc blockchain? (Data and figures)
- Where can I get an API for Arc blockchain app data? (Data and figures)
- What is Archery on Arc? (Named projects)
- Is Uniswap deployed on Arc? (Named projects)
- What is Argus on the Arc blockchain? (Named projects)
- What is Peach on Arc? (Named projects)
- What is Arclight Finance? (Named projects)
- Who controls the contracts of Tolly on Arc? (Named projects)
- What is ArcLand on Arc? (Named projects)
- Is Curve on Arc? (Named projects)
- How do I deploy a smart contract on Arc? (Developers)
- What is the Arc mainnet chain ID and RPC URL? (Developers)
- What block explorer does Arc use? (Developers)
- How do I accept USDC payments in my app on Arc? (Developers)
- Is there an MCP server for Arc blockchain data? (Developers)
- How can an AI agent pay for an API with USDC on Arc using x402? (Developers)
- What is Registrai? (Registrai)
- What is the Arc Builders Index by Registrai? (Registrai)
- Is Registrai's Arc data reliable? (Registrai)
- What does the Registrai Data API offer? (Registrai)