Tools
122 tested AI development tools, coding agents, frameworks, and infrastructure utilities.
AI-POWERED TOOLS
Free interactive tools. No signup. Bring your own API key.
Pricing
AI API Pricing
Live pricing across 200+ models. Sort by cost, context, and speed.
Calculator
AI Cost Calculator
Estimate monthly spend for Claude, GPT, Gemini, and more by token volume.
Estimator
Token Estimator
Count tokens for any prompt across model families before you send.
Picker
MCP Picker
Pick the right MCP servers for your stack and export a ready config.
Picker
AI Coding Agent Picker
Match the right coding agent to your workflow in under a minute.
Prompts
Prompt Critic
Test, diff, and critique prompts side-by-side across models.
Generator
README Generator (AI)
Generate a polished README from a repo URL or description.
Compare
Agent Compare
Side-by-side benchmarks of leading AI coding agents.
13 of 122 toolsin AI Models
ChatGPT
AI ModelsOpenAI's flagship. GPT-4o for general use, o3 for reasoning, Codex for coding. 300M+ weekly users. Tasks, agents, web browsing, DALL-E, code interpreter.
3 videoschat.openai.com
Claude
AI ModelsAnthropic's AI. Opus 4.6 for hard problems, Sonnet 4.6 for speed, Haiku 4.5 for cost. 200K context window. Best coding model I've tested. Max plan ($200/mo).
claude.ai
Claude Haiku 4.5
AI ModelsAnthropic's smallest Claude 4.5 model. Near-frontier coding performance at one-third the cost of Sonnet 4 and up to 4-5x faster than Sonnet 4.5. $1/$5 per million tokens.
anthropic.com
Claude Opus 4.7
AI ModelsAnthropic's flagship reasoning model. Best-in-class for coding, long-context analysis, and agentic workflows. 1M token context window. Available via API and in Claude Code.
anthropic.com
DeepSeek
AI ModelsOpen-source reasoning models from China. DeepSeek-R1 rivals o1 on math and code benchmarks. V3 for general use. Fully open weights. Extremely cost-effective API.
deepseek.com
DeepSeek V3.2
AI ModelsDeepSeek's reasoning-first model built for agents. First model to integrate thinking directly into tool use. Ships alongside V3.2-Speciale, which rivals GPT-5 and Gemini 3.0 Pro.
api-docs.deepseek.com
Gemini
AI ModelsGoogle's frontier model family. Gemini 2.5 Pro has 1M token context and top-tier coding benchmarks. Gemini 3 Pro pushes reasoning further. Free tier via AI Studio.
deepmind.google
GPT-5
AI ModelsOpenAI's latest flagship model. Major leap in reasoning, coding, and instruction following over GPT-4o. Powers ChatGPT Plus/Pro and the API. Available via API and ChatGPT.
openai.com
Grok
AI ModelsxAI's model with real-time X/Twitter data access. Grok 3 rivals top models on reasoning. Built-in web search and current events awareness. Available via API.
x.ai
Llama
AI ModelsMeta's open-source model family. Llama 4 available in Scout (17B active) and Maverick (17B active, 128 experts). Free to use, modify, and deploy commercially.
llama.meta.com
Mistral
AI ModelsEuropean open-weight models. Mistral Large for complex tasks, Mistral Small for speed, Codestral for code. Strong multilingual support. Open and API options.
mistral.ai
OpenRouter
AI ModelsUnified API for 200+ models. One API key, one billing dashboard. OpenAI, Anthropic, Google, Meta, Mistral, and more. Automatic fallbacks and load balancing.
openrouter.ai
Qwen3-Coder
AI ModelsAlibaba's flagship open-weight coding model. 480B total parameters, 35B active (MoE). Native 256K context, scales to 1M. Apache 2.0 license. State-of-the-art agentic coding.
qwenlm.github.io
Want to see these tools in action?
I make videos showing how to actually use these tools to build real projects.
EXPLORE THE ECOSYSTEM
More directories and tools across the Developers Digest network.
210+ models
AI Model Directory
210+ AI models compared by intelligence, speed, cost, and latency. Recommendations engine included.
50+ CLIs
CLI Directory
50+ command-line tools for developers. Search, compare, and find the right CLI for any task.
49 tools
Developer Toolkit
49 free browser-based tools. JSON formatter, regex tester, diff viewer, and more.
63 comparisons
Compare Tools
Side-by-side comparisons of AI coding tools, frameworks, and infrastructure. 63 comparisons available.
Get Smarter About AI Dev
New tutorials, open-source projects, and deep dives on coding agents - delivered weekly.
One email per weekReal code, not theoryFree forever