Open source focus
Open Source Alternatives to Callosum
60 open source AI Infrastructure options similar to Callosum, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Nebius85NeocloudAmsterdam, Netherlands$775.0MOpen source
Crusoe Cloud - AI Infrastructure and GPU Cloud Platform48AI InfrastructureDenver, United StatesOpen source
Habana Labs64ComputingTel Aviv, Israel$105.0MOpen source
Brev50NeocloudSan Francisco, United States$3.3MOpen source
VAST Data85StorageNew York, United States$881.0MOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
SiFive66AI ChipSan Jose, United States$774.9MOpen source
Vultr63NeocloudHerndon, United States$662.0MOpen source
Speedata62EnterpriseSan Jose, United States$158.0MOpen source
Normal Computing62Artificial IntelligenceNew York, United States$50.0MOpen source
TENSORWAVE59AI InfrastructureUnited States$350.0MOpen source
Rigetti Computing59Quantum ComputingBerkeley, United States$178.0MOpen source
Cerebras Systems58AI ChipSunnyvale, United States$1.7BOpen source
Excelero55Data CenterSanta Clara, United States$25.0MOpen source
Prime Intellect55NeocloudSan Francisco, United States$130.0MOpen source
- MAMAJESTIC LABS AI52AISan Francisco, United States$100.0M
Open source
Spectral Compute49AI InfrastructureCambridge, United Kingdom$29.0MOpen source
Tenstorrent47AI ChipToronto, Canada$615.9MOpen source
Cognee42Artificial IntelligenceBerlin, Germany$7.5MOpen source
- HEHewlett Packard Enterprise42Enterprise TechnologySpring, USA
Open source
AMD36SemiconductorSanta Clara, United StatesOpen source
QuantbeeQuantum ComputingOpen source
- Nexa AiOn-Device AIבית חירות, Israel
Open source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Arm Holdings plc77Semiconductor DesignCambridge, United Kingdom$35.9BOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Unitree Robotics74RoboticsHangzhou, China$890.1MOpen source
Neon72DatabaseSan Francisco, United States$1.2BOpen source
DeepSeek AI70AI InfrastructureBeijing, China$15.8BOpen source
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
WekaIO70ComputingCampbell, United States$565.0MOpen source
Qdrant70Vector DatabaseBerlin, Germany$96.5MOpen source · Self-hostable
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Quantum Machines69Quantum ComputingTel Aviv, Israel$293.0MOpen source
Teleport69CybersecurityOakland, United States$190.0MOpen source
Hailo69Edge ComputingTel Aviv, Israel$425.0MOpen source
Netlify69Cloud ComputingSan Francisco, United States$202.1MOpen source
Stripes AI68FintechSouth San Francisco, United States$25.4MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Starburst67AIBoston, United States$414.0MOpen source · Self-hostable
Daytona66AI InfrastructureNew York, United States$46.0MOpen source
Solo.io66Artificial IntelligenceCambridge, USA$174.8MOpen source · Self-hostable
Weights & Biases66AI InfrastructureSan Francisco, United StatesOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
Arize AI65AI ObservabilityBerkeley, United StatesOpen source
ClearML64AutoMLTel Aviv, Israel$11.0MOpen source · Self-hostable
RAD Security64CybersecurityTel Aviv, Israel$29.0MOpen source
Cast AI63MLOpsTel Aviv, Israel$44.0MOpen source
Airweave63Agentic AISan Francisco, United States$6.0MOpen source · Self-hostable
Aerospike63DatabaseSunnyvale, United States$161.0MOpen source
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Domino Data Lab, Inc.63AI GovernanceNew York, United States$100.5MOpen source
Bright Data63Web Data PlatformTel Aviv, Israel$34.0MOpen source
RadixArk62Artificial IntelligencePalo Alto, USA$20.0MOpen source
Hyperstack62GPU-as-a-ServiceLondon, United KingdomOpen source
Ingonyama62SemiconductorTel Aviv, Israel$20.0MOpen source
GreyOrange61RoboticsAtlanta, United StatesOpen source
Cribl61Data ManagementSan Francisco, USA$715.4MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Nebius | Neocloud | Open source | Amsterdam, Netherlands | $775.0M | 85 | |
| Crusoe Cloud - AI Infrastructure and GPU Cloud Platform | AI Infrastructure | Open source | Denver, United States | — | 48 | |
| Habana Labs | Computing | Open source | Tel Aviv, Israel | $105.0M | 64 | |
| Brev | Neocloud | Open source | San Francisco, United States | $3.3M | 50 | |
| VAST Data | Storage | Open source | New York, United States | $881.0M | 85 | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| SiFive | AI Chip | Open source | San Jose, United States | $774.9M | 66 | |
| Vultr | Neocloud | Open source | Herndon, United States | $662.0M | 63 | |
| Speedata | Enterprise | Open source | San Jose, United States | $158.0M | 62 | |
| Normal Computing | Artificial Intelligence | Open source | New York, United States | $50.0M | 62 | |
| TENSORWAVE | AI Infrastructure | Open source | United States | $350.0M | 59 | |
| Rigetti Computing | Quantum Computing | Open source | Berkeley, United States | $178.0M | 59 | |
| Cerebras Systems | AI Chip | Open source | Sunnyvale, United States | $1.7B | 58 | |
| Excelero | Data Center | Open source | Santa Clara, United States | $25.0M | 55 | |
| Prime Intellect | Neocloud | Open source | San Francisco, United States | $130.0M | 55 | |
| MAMAJESTIC LABS AI | AI | Open source | San Francisco, United States | $100.0M | 52 | |
| Spectral Compute | AI Infrastructure | Open source | Cambridge, United Kingdom | $29.0M | 49 | |
| Tenstorrent | AI Chip | Open source | Toronto, Canada | $615.9M | 47 | |
| Cognee | Artificial Intelligence | Open source | Berlin, Germany | $7.5M | 42 | |
| HEHewlett Packard Enterprise | Enterprise Technology | Open source | Spring, USA | — | 42 | |
| AMD | Semiconductor | Open source | Santa Clara, United States | — | 36 | |
| Quantbee | Quantum Computing | Open source | — | — | — | |
| On-Device AI | Open source | בית חירות, Israel | — | — | ||
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 | |
| Arm Holdings plc | Semiconductor Design | Open source | Cambridge, United Kingdom | $35.9B | 77 | |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| Unitree Robotics | Robotics | Open source | Hangzhou, China | $890.1M | 74 | |
| Neon | Database | Open source | San Francisco, United States | $1.2B | 72 | |
| DeepSeek AI | AI Infrastructure | Open source | Beijing, China | $15.8B | 70 | |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 | |
| WekaIO | Computing | Open source | Campbell, United States | $565.0M | 70 | |
| Qdrant | Vector Database | Open source · Self-hostable | Berlin, Germany | $96.5M | 70 | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| Quantum Machines | Quantum Computing | Open source | Tel Aviv, Israel | $293.0M | 69 | |
| Teleport | Cybersecurity | Open source | Oakland, United States | $190.0M | 69 | |
| Hailo | Edge Computing | Open source | Tel Aviv, Israel | $425.0M | 69 | |
| Netlify | Cloud Computing | Open source | San Francisco, United States | $202.1M | 69 | |
| Stripes AI | Fintech | Open source | South San Francisco, United States | $25.4M | 68 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Starburst | AI | Open source · Self-hostable | Boston, United States | $414.0M | 67 | |
| Daytona | AI Infrastructure | Open source | New York, United States | $46.0M | 66 | |
| Solo.io | Artificial Intelligence | Open source · Self-hostable | Cambridge, USA | $174.8M | 66 | |
| Weights & Biases | AI Infrastructure | Open source | San Francisco, United States | — | 66 | |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 | |
| Arize AI | AI Observability | Open source | Berkeley, United States | — | 65 | |
| ClearML | AutoML | Open source · Self-hostable | Tel Aviv, Israel | $11.0M | 64 | |
| RAD Security | Cybersecurity | Open source | Tel Aviv, Israel | $29.0M | 64 | |
| Cast AI | MLOps | Open source | Tel Aviv, Israel | $44.0M | 63 | |
| Airweave | Agentic AI | Open source · Self-hostable | San Francisco, United States | $6.0M | 63 | |
| Aerospike | Database | Open source | Sunnyvale, United States | $161.0M | 63 | |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 | |
| Domino Data Lab, Inc. | AI Governance | Open source | New York, United States | $100.5M | 63 | |
| Bright Data | Web Data Platform | Open source | Tel Aviv, Israel | $34.0M | 63 | |
| RadixArk | Artificial Intelligence | Open source | Palo Alto, USA | $20.0M | 62 | |
| Hyperstack | GPU-as-a-Service | Open source | London, United Kingdom | — | 62 | |
| Ingonyama | Semiconductor | Open source | Tel Aviv, Israel | $20.0M | 62 | |
| GreyOrange | Robotics | Open source | Atlanta, United States | — | 61 | |
| Cribl | Data Management | Open source | San Francisco, USA | $715.4M | 61 |