API platform
Speko is the OpenRouter for Voice AI, the first proxyless, zero-latency model router for voice AI. It routes STT, LLM and TTS on numbers from the independent benchmark at speko.ai/benchmarks. The benchmark covers 89 speech and language…
Founders · Product
- Founded
- 2026
- Team
- 4 people
Infrastructure
Create copies of any Postgres database in under 6 seconds. Let coding agents test, clean, and migrate data on isolated branches with zero risk to production.
Founders
- Founded
- 2025
- Team
- 3 people
API platform
Autumn is an AI people and company research platform that turns fragmented public-web data into cited profiles for sales prospecting, startup discovery, fraud detection, and expert sourcing.
Product
- Founded
- 2025
- Team
- 2 people
Infrastructure
RunRL improves LLMs and AI agents with reinforcement learning. Do you have a model that needs to get better at a certain task? Are you tired of messing around with prompts? Do you spend a lot of money on observability, and wish that all…
Product
- Founded
- 2025
- Team
- 2 people
Infrastructure
Build, seed, and call twins of the services your software acts on via API, CLI, or MCP.
Founders · Product
- Founded
- 2025
- Team
- 4 people
Infrastructure
What is it?
Trim is building an AI model that can simulate real-world physical systems evolving over time. For example, given the starting position of wav...
Founders
- Founded
- 2024
- Team
- 3 people
AI agent
With tools like Cursor and Claude Code, writing software is no longer the bottleneck. Debugging is. Agents cannot fix production crashes using logs and traces that were sized for human eyeballs. The gap is missing data.
HyperProbe…
Founders · Pricing · Product
- Founded
- 2026
- Team
- 8 people
Infrastructure
Osmosis is a post-training platform that helps companies fine-tune language models using reinforcement learning. We work with fast-growing AI companies to train task/domain-specific models that beat foundation models on performance…
Founders · Product · How it works
- Founded
- 2024
- Team
- 6 people
Infrastructure
Get on ChatGPT and Claude plugin stores, understand how agents use them and test every release across clients and harnesses.
Customers · Founders · Product
- Founded
- 2025
- Team
- 5 people
Infrastructure
Spend on AI with confidence. Every task runs on the right model, with proof from your own traffic that quality still meets your standards.
Founders · Product · How it works
- Founded
- 2026
- Team
- 2 people
Infrastructure
Million builds open-source developer tools, datasets, and reinforcement learning environments to help people and frontier coding agents build a better web.
Product
- Founded
- 2023
- Team
- 5 people
Infrastructure
Codag cuts coding-agent costs without changing how developers work. One command attaches it to Claude Code and Codex, and it teaches your agent to read large tool results efficiently.
Founders · Pricing · Product
- Founded
- 2026
- Team
- 1 people
Infrastructure
Cut OpenAI, Anthropic, and Gemini API costs with accuracy held flat — or take a smaller cut and lift accuracy by several points instead. The bear-2 prompt compression API strips low-signal tokens from your inputs before they hit the…
Product
- Founded
- 2025
- Team
- 2 people
API platform
Automorphic has invented a way to infuse knowledge into LLMs via fine-tuning (surpassing context window limitations), enabling developers to rapidly iterate on and successively improve custom models cheaply and efficiently.
Founders · Product
- Founded
- 2023
- Team
- 3 people
Infrastructure
Pipeshift delivers the production infrastructure, tooling, and expertise needed to take the best AI products and agents to market—fast. Access bleeding-edge performance research and inference orchestration for real-time workloads across…
Product · How it works
- Founded
- 2024
- Team
- 10 people
Infrastructure
One MCP URL behind your SSO. 1,000+ integrations, role-based tool access, audit logs and shared skills, in Claude, ChatGPT and Cursor. Open source.
Founders · Origins · Pricing · How it works
- Founded
- 2025
- Team
- 4 people
Infrastructure
OneTriangle optimizes multi-model inference by transferring KV cache between models, cutting redundant prefill cost.
Founders · Origins
- Founded
- 2026
- Team
- 4 people
Infrastructure
We are building a new class of interpretable AI systems and foundation models that humans can reliably debug, trust, and understand.
Product
- Founded
- 2023
- Team
- 6 people
API platform
We find flaws in RL environments and evals and help you fix them.
Founders · Product
- Founded
- 2026
- Team
- 3 people
API platform
Hopper trains open-weight models on your production traces, then serves and improves them against your live traffic.
Founders
- Founded
- 2026
- Team
- 2 people
Infrastructure
We are an applied research lab building novel data harvesting techniques.
Founders
- Founded
- 2023
- Team
- 6 people
Analytics
Trace every run. Auto-fix silent failures. Simulate before shipping. Raindrop helps you detect agent issues and prevent them from happening.
Founders · Product
- Founded
- 2023
- Team
- 9 people
Infrastructure
Moss delivers sub-10ms semantic search for conversational AI, voice agents, and copilots. Connect your data once — Moss indexes and distributes it wherever your agent runs: in-browser, on-device, or in the cloud.
Pricing · Product · How it works
- Founded
- 2024
- Team
- 5 people
API platform
Give your agent an inbox of its own. AgentMail is the email infrastructure built for AI agents: send, receive and act on email at scale.
Founders · Pricing · How it works
- Founded
- 2025
- Team
- 10 people