Forge Review 2026
Forge better prompts for LLM-powered apps, agents, and workflows
What is Forge?
Promptmetheus is a prompt engineering IDE that breaks prompts into composable blocks to compose, test, and optimize prompts for LLM-powered apps, agents, and workflows. It supports 15 providers and 150+ LLMs.
Best for
Mixed
Use cases
- Prompt engineering
- Building AI agents
- LLM app development
- Team prompt library collaboration
Key features
LEGO-like prompt composition
Prompt variables
Custom prompt evaluators
150+ LLM model catalog
Test datasets
Cost calculation
Full traceability/versioning
Pricing
Model
freemium
Price range
Free Playground; Single $29/mo; Team $99/mo; bring your own API keys
Free tier
Yes
Integrations
Forge integrates with 5 tools including:
OpenAIAnthropicGoogle GeminiLiteLLMOpenAI-compatible APIs
Forge alternatives
Other AI Infrastructure & Agents tools worth comparing.