# Comet Opik vs CrewAI: who uses which

On usedby, 17 companies use Comet Opik and 18 use CrewAI. 1 company uses both, including NTT Data. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-10-19: 35 of 35 public lines checked.

## Side by side

|  | [Comet Opik](https://www.usedby.ai/tools/comet-opik.md) | [CrewAI](https://www.usedby.ai/tools/crewai.md) |
|---|---|---|
| Public customers | 17 | 18 |
| Confirmed | 10 | 5 |
| Observed | 7 | 13 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers (every proof level) | Artificial Intelligence (4), Automotive Manufacturing (2), E-commerce & D2C (2) | Consumer Goods (3), IT Services & System Integration (3), Accounting & Audit (2) |
| Category | LLM observability & evals | Agent frameworks & AI gateways |
| Security | ISO 27001, SOC 2 Type II ([trust.comet.com](https://trust.comet.com/), checked 2026-10-07) | SOC 2 Type II ([trust.crewai.com](https://trust.crewai.com/), checked 2026-10-07) |
| Free trial | Free trial or free plan available. ([comet.com](https://www.comet.com/site/pricing/), checked 2026-10-07) | Free trial or free plan available. ([crewai.com](https://crewai.com/pricing), checked 2026-10-07) |
| Integrations | BeeAI, LangChain, Mastra, Vercel AI SDK, OpenAI, Gemini, CrewAI, DSPy, Anthropic, LiteLLM, Ragas ([comet.com](https://www.comet.com/docs/opik/integrations/overview), checked 2026-10-07) | — |
| Pricing | Open Source: $0; Free Cloud: $0; Pro Cloud: $19 Per month; Enterprise: contact sales ([comet.com](https://www.comet.com/site/pricing/), checked 2026-10-07) | — |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, Comet Opik | Proof, CrewAI | First public proof, Comet Opik | First public proof, CrewAI |
|---|---|---|---|---|
| [NTT Data](https://www.usedby.ai/companies/ntt-data.md) | Confirmed | Observed | On or before July 2025 | On or before October 2026 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Comet Opik: [NatWest](https://www.usedby.ai/case-studies/natwest-group-comet-opik.md): story without a checked figure. (captured by usedby 2026-10-07)
- Comet Opik: [CareRev](https://www.usedby.ai/case-studies/carerev-comet-opik.md): story without a checked figure. (captured by usedby 2026-10-07)
- CrewAI: [Brickell Digital](https://www.usedby.ai/case-studies/brickell-digital-crewai.md): **80%**: “The agent lifted qualified‑lead volume by 80%” (captured by usedby 2026-10-06)
- CrewAI: [Gelato](https://www.usedby.ai/case-studies/gelato-crewai.md): **10 minutes**: “We can now integrate a new carrier in 10 minutes that used to take us 5 days.”” (captured by usedby 2026-10-06)

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Source: https://www.usedby.ai/compare/comet-opik-vs-crewai · How we check: https://www.usedby.ai/methodology