What AI assistants recommend when buyers ask about llm application development tools — measured weekly across engines, published as open data.
Sample: 49 AI answers · Window: May 21, 2026 – Jun 18, 2026 (4-week rolling)
| # | Product | Share | Trend | Engines | |
|---|---|---|---|---|---|
| 1 | LangChain langchain.com | 67.3% avg pos 3.8 | — | GEMINI 85.7%CHATGPT 42.9%CLAUDE 85.7%PERPLEXITY 64.3% | Claim |
| 2 | LlamaIndex llamaindex.ai | 51% avg pos 3.8 | — | GEMINI 85.7%CHATGPT 7.1%CLAUDE 71.4%PERPLEXITY 57.1% | Claim |
| 3 | HuggingFace Transformers huggingface.co | 42.9% avg pos 7.7 | — | GEMINI 28.6%CHATGPT 92.9%CLAUDE 28.6%PERPLEXITY 14.3% | Claim |
| 4 | Haystack | 36.7% avg pos 4.6 | — | GEMINI 71.4%CHATGPT 28.6%CLAUDE 21.4%PERPLEXITY 42.9% | Claim |
| 5 | ChatGPT openai.com | 28.6% avg pos 6.5 | — | GEMINI 42.9%CHATGPT 50%CLAUDE 21.4%PERPLEXITY 7.1% | Claim |
| 6 | CrewAI | 20.4% avg pos 8.3 | — | GEMINI 42.9%CLAUDE 42.9%PERPLEXITY 7.1% | Claim |
| 7 | Dify | 20.4% avg pos 11.1 | — | GEMINI 57.1%CLAUDE 7.1%PERPLEXITY 35.7% | Claim |
| 8 | Pinecone pinecone.io | 18.4% avg pos 8.3 | — | GEMINI 28.6%CHATGPT 14.3%CLAUDE 28.6%PERPLEXITY 7.1% | Claim |
| 9 | TensorFlow tensorflow.org | 18.4% avg pos 10 | — | CHATGPT 57.1%CLAUDE 7.1% | Claim |
| 10 | Apigee cloud.google.com | 18.4% avg pos 13 | — | GEMINI 14.3%CHATGPT 42.9%CLAUDE 14.3% | Claim |
| 11 | PyTorch pytorch.org | 16.3% avg pos 8.5 | — | CHATGPT 50%CLAUDE 7.1% | Claim |
| 12 | LangSmith smith.langchain.com | 16.3% avg pos 10.1 | — | GEMINI 42.9%CLAUDE 7.1%PERPLEXITY 28.6% | Claim |
| 13 | LangGraph | 14.3% avg pos 1.6 | — | GEMINI 28.6%CLAUDE 14.3%PERPLEXITY 21.4% | Claim |
| 14 | Weaviate weaviate.io | 14.3% avg pos 7.9 | — | GEMINI 14.3%CHATGPT 14.3%CLAUDE 21.4%PERPLEXITY 7.1% | Claim |
| 15 | Anthropic Claude API anthropic.com | 14.3% avg pos 8.3 | — | GEMINI 42.9%CLAUDE 21.4%PERPLEXITY 7.1% | Claim |
| 16 | Microsoft Dynamics 365 microsoft.com | 14.3% avg pos 11.5 | — | GEMINI 28.6%CLAUDE 21.4%PERPLEXITY 14.3% | Claim |
| 17 | Ollama | 14.3% avg pos 11.5 | — | GEMINI 42.9%CLAUDE 14.3%PERPLEXITY 14.3% | Claim |
| 18 | vLLM | 14.3% avg pos 13.5 | — | GEMINI 42.9%CLAUDE 21.4%PERPLEXITY 7.1% | Claim |
| 19 | Weights & Biases wandb.ai | 14.3% avg pos 24.7 | — | GEMINI 42.9%CHATGPT 14.3%CLAUDE 14.3% | Claim |
| 20 | DSPy | 12.2% avg pos 4.7 | — | GEMINI 28.6%CLAUDE 21.4%PERPLEXITY 7.1% | Claim |
| 21 | Botpress | 12.2% avg pos 6.7 | — | CLAUDE 14.3%PERPLEXITY 28.6% | Claim |
| 22 | Flowise | 12.2% avg pos 9.4 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 28.6% | Claim |
| 23 | AWS SNS aws.amazon.com | 12.2% avg pos 13.3 | — | CHATGPT 28.6%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 24 | RAGAS | 12.2% avg pos 13.6 | — | GEMINI 28.6%CLAUDE 7.1%PERPLEXITY 21.4% | Claim |
| 25 | Microsoft Azure API Management azure.microsoft.com | 12.2% avg pos 14.3 | — | GEMINI 14.3%CHATGPT 35.7% | Claim |
| 26 | FastAPI fastapi.tiangolo.com | 12.2% avg pos 16 | — | CHATGPT 42.9% | Claim |
| 27 | GPT4All | 10.2% avg pos 10.3 | — | GEMINI 14.3%CLAUDE 14.3%PERPLEXITY 14.3% | Claim |
| 28 | Langfuse langfuse.com | 10.2% avg pos 10.8 | — | GEMINI 28.6%PERPLEXITY 21.4% | Claim |
| 29 | Helicone helicone.ai | 10.2% avg pos 13.7 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 21.4% | Claim |
| 30 | Unstructured unstructured.io | 10.2% avg pos 13.8 | — | GEMINI 42.9%PERPLEXITY 14.3% | Claim |
| 31 | Streamlit | 10.2% avg pos 16 | — | CHATGPT 21.4%PERPLEXITY 14.3% | Claim |
| 32 | MLflow | 10.2% avg pos 16.4 | — | GEMINI 28.6%CHATGPT 14.3%PERPLEXITY 7.1% | Claim |
| 33 | AutoGen | 8.2% avg pos 4.5 | — | GEMINI 28.6%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 34 | Bifrost getmaxim.ai | 8.2% avg pos 5 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 14.3% | Claim |
| 35 | TruLens trulens.org | 8.2% avg pos 5.3 | — | CLAUDE 7.1%PERPLEXITY 21.4% | Claim |
| 36 | Mistral mistral.ai | 8.2% avg pos 5.3 | — | GEMINI 14.3%CLAUDE 14.3%PERPLEXITY 7.1% | Claim |
| 37 | Elasticsearch elastic.co | 8.2% avg pos 5.5 | — | GEMINI 14.3%CHATGPT 21.4% | Claim |
| 38 | Chroma trychroma.com | 8.2% avg pos 6.3 | — | GEMINI 14.3%CLAUDE 21.4% | Claim |
| 39 | BERT | 8.2% avg pos 7 | — | GEMINI 14.3%CHATGPT 14.3%CLAUDE 7.1% | Claim |
| 40 | pgvector | 8.2% avg pos 7 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 14.3% | Claim |
| 41 | Milvus milvus.io | 8.2% avg pos 7.3 | — | GEMINI 28.6%CLAUDE 14.3% | Claim |
| 42 | Llama | 8.2% avg pos 7.5 | — | CHATGPT 7.1%CLAUDE 14.3%PERPLEXITY 7.1% | Claim |
| 43 | Rasa rasa.com | 8.2% avg pos 7.5 | — | CHATGPT 21.4%CLAUDE 7.1% | Claim |
| 44 | Qdrant qdrant.tech | 8.2% avg pos 8.5 | — | GEMINI 28.6%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 45 | Arize arize.com | 8.2% avg pos 10 | — | GEMINI 14.3%CLAUDE 14.3%PERPLEXITY 7.1% | Claim |
| 46 | Vercel vercel.com | 8.2% avg pos 14.5 | — | GEMINI 28.6%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 47 | Flask | 8.2% avg pos 14.8 | — | CHATGPT 28.6% | Claim |
| 48 | DeepEval | 8.2% avg pos 16.3 | — | GEMINI 28.6%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 49 | NVIDIA NeMo Retriever build.nvidia.com | 6.1% avg pos 3 | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 50 | Semantic Kernel | 6.1% avg pos 3 | — | GEMINI 14.3%CLAUDE 14.3% | Claim |
| 51 | ZenML zenml.io | 6.1% avg pos 4.7 | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 52 | Azure SQL Serverless learn.microsoft.com | 6.1% avg pos 5 | — | GEMINI 28.6%PERPLEXITY 7.1% | Claim |
| 53 | Danswer danswer.ai | 6.1% avg pos 5 | — | CLAUDE 7.1%PERPLEXITY 14.3% | Claim |
| 54 | PydanticAI | 6.1% avg pos 7 | — | CLAUDE 14.3%PERPLEXITY 7.1% | Claim |
| 55 | Haystack by deepset deepset.ai | 6.1% avg pos 8.5 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 56 | AnythingLLM | 6.1% avg pos 11 | — | GEMINI 14.3%CLAUDE 14.3% | Claim |
| 57 | LM Studio | 6.1% avg pos 11 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 58 | LiteLLM litellm.ai | 6.1% avg pos 11.5 | — | CLAUDE 14.3%PERPLEXITY 7.1% | Claim |
| 59 | llama.cpp | 6.1% avg pos 11.5 | — | GEMINI 14.3%CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 60 | Open WebUI | 6.1% avg pos 12 | — | GEMINI 14.3%CLAUDE 14.3% | Claim |
| 61 | GitHub Releases github.com | 6.1% avg pos 16 | — | CHATGPT 7.1%PERPLEXITY 14.3% | Claim |
| 62 | Kubernetes Operators kubernetes.io | 6.1% avg pos 18.3 | — | CHATGPT 21.4% | Claim |
| 63 | Docker docker.com | 6.1% avg pos 19.3 | — | CHATGPT 21.4% | Claim |
| 64 | Ray Serve ray.io | 6.1% avg pos 21 | — | GEMINI 14.3%CHATGPT 14.3% | Claim |
| 65 | Portkey portkey.ai | 6.1% avg pos 27.5 | — | GEMINI 28.6%CLAUDE 7.1% | Claim |
| 66 | IBM API Connect ibm.com | 6.1% avg pos 28 | — | GEMINI 14.3%CHATGPT 14.3% | Claim |
| 67 | Apache Tika | 4.1% avg pos 2 | — | CHATGPT 14.3% | Claim |
| 68 | Sentence Transformers | 4.1% avg pos 4.5 | — | CHATGPT 14.3% | Claim |
| 69 | GPT-J | 4.1% avg pos 5 | — | CHATGPT 14.3% | Claim |
| 70 | GPT-Neo | 4.1% avg pos 5 | — | CHATGPT 14.3% | Claim |
| 71 | Helix | 4.1% avg pos 5 | — | CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 72 | Braintrust braintrust.dev | 4.1% avg pos 5.5 | — | PERPLEXITY 14.3% | Claim |
| 73 | FastChat | 4.1% avg pos 5.5 | — | PERPLEXITY 14.3% | Claim |
| 74 | TensorZero | 4.1% avg pos 5.5 | — | PERPLEXITY 14.3% | Claim |
| 75 | Cohere API cohere.com | 4.1% avg pos 7 | — | PERPLEXITY 14.3% | Claim |
| 76 | pdfminer | 4.1% avg pos 8 | — | CHATGPT 14.3% | Claim |
| 77 | FlowiseAI flowiseai.com | 4.1% avg pos 9 | — | GEMINI 14.3%PERPLEXITY 7.1% | Claim |
| 78 | Vercel AI SDK sdk.vercel.ai | 4.1% avg pos 9 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 79 | Langflow | 4.1% avg pos 10 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 80 | OpenSearch | 4.1% avg pos 10 | — | GEMINI 14.3%PERPLEXITY 7.1% | Claim |
| 81 | FAISS | 4.1% avg pos 10.5 | — | CHATGPT 14.3% | Claim |
| 82 | Jan | 4.1% avg pos 11.5 | — | GEMINI 14.3%PERPLEXITY 7.1% | Claim |
| 83 | Replicate replicate.com | 4.1% avg pos 16 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 84 | AllenNLP allennlp.org | 4.1% avg pos 17 | — | CHATGPT 14.3% | Claim |
| 85 | T5 | 4.1% avg pos 17.5 | — | CHATGPT 14.3% | Claim |
| 86 | Typesense typesense.org | 4.1% avg pos 18 | — | CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 87 | Verba | 4.1% avg pos 18 | — | CLAUDE 7.1%PERPLEXITY 7.1% | Claim |
| 88 | OpenLLM | 4.1% avg pos 20 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 89 | Qwen3 | 4.1% avg pos 21 | — | GEMINI 14.3%PERPLEXITY 7.1% | Claim |
| 90 | Grafana grafana.com | 4.1% avg pos 21.5 | — | CHATGPT 14.3% | Claim |
| 91 | Prometheus Alertmanager prometheus.io | 4.1% avg pos 21.5 | — | CHATGPT 14.3% | Claim |
| 92 | Dust dust.tt | 4.1% avg pos 22 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 93 | SuperAgent | 4.1% avg pos 24 | — | GEMINI 28.6% | Claim |
| 94 | Opik | 4.1% avg pos 25.5 | — | GEMINI 14.3%PERPLEXITY 7.1% | Claim |
| 95 | Mirascope mirascope.io | 4.1% avg pos 31 | — | GEMINI 28.6% | Claim |
| 96 | Confident AI confident-ai.com | 4.1% avg pos 38 | — | GEMINI 14.3%CLAUDE 7.1% | Claim |
| 97 | Gradio gradio.app | 4.1% avg pos 41 | — | CHATGPT 14.3% | Claim |
| 98 | Jan.ai | 4.1% | — | CLAUDE 14.3% | Claim |
| 99 | MongoDB Atlas mongodb.com | 2% avg pos 1 | — | CHATGPT 7.1% | Claim |
| 100 | PyMuPDF | 2% avg pos 2 | — | CHATGPT 7.1% | Claim |
Independence: Orbator customers are badged for disclosure. Customer status does not affect prompts, sampling, extraction, or ranking — see the methodology. Your product on this list? Claim it to see the prompts behind your rank and track it weekly.
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