RunRL sells reinforcement learning as a service. A customer supplies a model, a prompt, and a reward function, and the service runs hosted reinforcement learning post-training against that configuration until the model's reward on the target task goes up, replacing manual prompt iteration with managed training runs.
The company pitches the offering at teams that already spend on observability and want that data to drive self-improvement rather than monitoring alone, and at teams that need a model or agent to get better at a specific task without building a reinforcement learning pipeline themselves. The service is operated by a San Francisco company that went through Y Combinator's X25 batch.

RunRL is a reinforcement learning service that runs hosted post-training campaigns and raises a model's reward on a customer-supplied task.


Expert-built evaluation services for measuring AI agent quality, model choice, and operating cost.


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Sunflower Lab custom AI agent development service designing and building industry-tailored AI agents integrated into existing client toolstacks.


Deep Cogito trains specialized open-weight models on an enterprise customer's own data and outcomes.


Managed supervised fine-tuning service for open-source models with on-demand and dedicated deployment options.


Self-improving research platform running scored experiments in parallel.


Sales-led engagement in which Chonkie trains custom specialist models on a customer's production data for specific software workflows.


AI Managed Services is Adservio's managed run offering for production GenAI estates with LLMOps observability, monitoring, FinOps, and audit.


AI agent development service from Memetic Solutions delivering enterprise-scale custom agents built on LLMs and machine learning.


Managed service for fine-tuning open-source models on dedicated or shared GPU infrastructure for production use.


AI agent development service from Uptech covering end-to-end custom agent builds, multi-agent systems, and enterprise deployment with post-launch support.


Provides ongoing AI and automation leadership without a full-time hire.



Replicate is a cloud API to run, fine-tune, and deploy open-source machine learning models with auto-scaling.


AI agent development service covering strategy, architecture, build, deployment, and agent operations.


Custom agentic AI agent development service running from discovery to production.


Managed cloud execution service running durable AI agents and background tasks with retries, checkpointing, monitoring, and elastic scaling.


Typed Pydantic AI agents with validated outputs and observability.


Custom single-agent system automating one bounded workflow end to end.


Together AI is a serverless and dedicated inference API for open-source AI models with OpenAI-compatible endpoints.
Expert-built evaluation services for measuring AI agent quality, model choice, and operating cost.

Enterprise AI consulting and build services for production workflows.

Sunflower Lab custom AI agent development service designing and building industry-tailored AI agents integrated into existing client toolstacks.

Deep Cogito trains specialized open-weight models on an enterprise customer's own data and outcomes.

Managed supervised fine-tuning service for open-source models with on-demand and dedicated deployment options.

Self-improving research platform running scored experiments in parallel.

Sales-led engagement in which Chonkie trains custom specialist models on a customer's production data for specific software workflows.

AI Managed Services is Adservio's managed run offering for production GenAI estates with LLMOps observability, monitoring, FinOps, and audit.

AI agent development service from Memetic Solutions delivering enterprise-scale custom agents built on LLMs and machine learning.

Managed service for fine-tuning open-source models on dedicated or shared GPU infrastructure for production use.

AI agent development service from Uptech covering end-to-end custom agent builds, multi-agent systems, and enterprise deployment with post-launch support.

Provides ongoing AI and automation leadership without a full-time hire.

Production LLM applications built with LangChain and LangGraph.

Replicate is a cloud API to run, fine-tune, and deploy open-source machine learning models with auto-scaling.

AI agent development service covering strategy, architecture, build, deployment, and agent operations.

Custom agentic AI agent development service running from discovery to production.

Managed cloud execution service running durable AI agents and background tasks with retries, checkpointing, monitoring, and elastic scaling.

Typed Pydantic AI agents with validated outputs and observability.

Custom single-agent system automating one bounded workflow end to end.

Together AI is a serverless and dedicated inference API for open-source AI models with OpenAI-compatible endpoints.
