| Description |
| Summary |
Open-source LLM observability gateway (Rust-based). Note: As of 2025-2026, Helicone is in maintenance mode with no new features planned.
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| Description |
Helicone is an open-source LLM observability platform and AI gateway for logging, monitoring, routing, debugging, and cost/latency tracking across LLM requests; after Mintlify acquisition, services remain live in maintenance mode.
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| Positioning |
LLM observability platform
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| Key facts |
| HQ location |
San Francisco, CA, USA
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| Founded |
2023
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| Employee range |
11-50
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| Funding stage |
Acquired
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| Company type |
Unknown
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| Pricing model |
subscription, usage based
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| Last updated |
Jun 21, 2026
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| Financials |
| Revenue estimate |
Unknown
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| Valuation estimate |
Unknown
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| Investments |
Acquired by Mintlify in Mar 2026; prior funding undisclosed/limited public information
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| Relationships |
| Target customers |
Developers running LLM applications
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| Key competitors |
Langfuse, LangSmith, PromptLayer, Arize AI
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| Known customers |
Unknown
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| Segments & Industries |
| Segments |
AI Developer Tools, Knowledge & RAG, LLM Deployment, AI Quality & Observability, AI Governance & Risk, Analytics & BI
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