DevTool AI Index · 2026-11-05
Which LLM API provider tools do AI assistants recommend?
Asked neutral build questions about LLM API provider, AI assistants name OpenAI most often (76% of answers on average), then Anthropic (43%). Gemini names OpenAI most (87%); Claude names OpenAI most (65%).
500 neutral build questions in 25 categories, written so they never name a product. Each question is asked 3 times to every engine, because AI answers change from run to run. A share is the part of answers that names the tool. The range in brackets is a 95% interval: with fewer answers it is wider. Engines this run: Gemini, Claude (plain model answers, no web search). Run date 2026-11-05.
Top 10 tools
| # | Tool | Gemini | Claude |
|---|---|---|---|
| 1 | OpenAI | 87% [76% to 93%] | 65% [52% to 76%] |
| 2 | Anthropic | 45% [33% to 57%] | 40% [29% to 53%] |
| 3 | Google Gemini | 28% [19% to 41%] | 17% [9% to 28%] |
| 4 | Azure OpenAI | 20% [12% to 32%] | 7% [3% to 16%] |
| 5 | Groq | 15% [8% to 26%] | 7% [3% to 16%] |
| 6 | Together AI | 8% [4% to 18%] | 12% [6% to 22%] |
| 7 | AWS Bedrock | 17% [9% to 28%] | not named |
| 8 | DeepSeek | 7% [3% to 16%] | 7% [3% to 16%] |
| 9 | Gemini | not named | 12% [6% to 22%] |
| 10 | Google Vertex AI | not named | 12% [6% to 22%] |
Answers per engine: Gemini 60, Claude 60.
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AI assistants learn which tools to name from docs, comparisons and the pages they cite. Factline AI Visibility tracks your own questions and competitors over time, with the same method.
Other categories
authentication · relational database hosting (Postgres/MySQL) · vector database · backend-as-a-service · frontend hosting and deployment · serverless and edge functions · payments and billing · transactional email · observability and logging · error tracking · feature flags · background jobs and queues · search engine for apps · file storage and CDN · CMS (headless) · AI agent framework · LLM observability and evals · web scraping and browser automation API · analytics (product) · CI/CD · infrastructure as code · realtime and websockets · maps and geocoding API · SMS and phone API