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OpenAI
Versatile conversational AI for everyday work
View DetailsWe've analyzed all major AI tools to find which ones offer function calling for free. Here are 37 top options you can start using right now without a credit card.
OpenAI
Versatile conversational AI for everyday work
View DetailsAnthropic
Advanced reasoning and nuanced long form analysis
View DetailsMultimodal AI integrated into Google Workspace
View DetailsDeepSeek AI
Open weights reasoning model for complex computation
View DetailsAnysphere
AI first code editor for rapid engineering
View DetailsGitHub
AI pair programmer integrated into popular IDEs
View DetailsCodeium
Agentic IDE designed for deep codebase collaboration
View DetailsMeta
Open-source large language model family
View DetailsPerplexity AI
AI-native browser with a sidecar assistant
View DetailsGemini Notebook — research grounded in your sources
View DetailsAgentic IDE, CLI, SDK, and desktop command center
View DetailsAmazon
Spec-driven agentic IDE, CLI, web, and mobile
View DetailsCodeRabbit
Agentic AI code review for pull requests, IDE, and CLI
View DetailsReplit
Browser IDE and Agent that publishes full-stack apps
View DetailsAider
Open-source AI pair programming in the terminal
View DetailsWarp
AI terminal, agent CLI, and cloud software factories
View DetailsTabnine
Private, air-gappable AI coding assistant and agents
View Detailsn8n
Source-available workflow automation with AI agents
View DetailsGroq
Fast LPU inference API, playground, and Whisper STT
View DetailsOpenRouter
One OpenAI-compatible API for 500+ models
View DetailsHugging Face
Model hub, datasets, Spaces, and inference
View DetailsOpenClaw
Open-source personal agent on your machine and chat apps
View DetailsOtter.ai
AI meeting notes, live transcription, and Otter Chat
View DetailsZapier
No-code automation, agents, and 9,000+ app connections
View DetailsPhotoroom
Product photo editor, background removal, and listing API
View DetailsLangChain
Open agent framework plus LangSmith for test, deploy, and govern
View DetailsLinear
Issue tracker with agents, MCP, and Linear Agent
View DetailsClickUp
Projects, docs, chat, and Brain agents in one workspace
View DetailsAsana
Work graph, AI Teammates, and MCP for human-agent teams
View DetailsMake
Visual automation scenarios across thousands of apps
View DetailsFigma
Collaborative design canvas with Figma AI, Make, and MCP
View DetailsAmazon
AWS platform for foundation models, agents, and Guardrails
View DetailsMicrosoft
OpenAI models on Azure with enterprise identity and networking
View DetailsGoogle Cloud agent platform, Model Garden, and Gemini API
View DetailsDeepgram
Speech-to-text, Flux TTS, and a Voice Agent API
View DetailsAssemblyAI
Speech-to-text, Voice Agent API, and speech understanding
View DetailsRaycast
OS launcher chat with 32+ models, extensions, and Ollama
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