Coding agents
How to Use a Skill in Claude: App, Claude Code, and API
Learn how to select a Skill in Claude, add and test a custom Skill in Claude’s app or Claude Code, and understand what the Claude API supports.
AI model and infrastructure insights
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Model APIs
Gemini API Rate Limits: Diagnose and Resolve Production 429 Errors
Troubleshoot Gemini API 429 errors by matching the deployed key to its project, checking active model limits and tier in AI Studio, and choosing a product-specific recovery step.
Model APIs
GPT-5 API: Make Your First OpenAI Responses API Request
Connect to GPT-5.5 through OpenAI’s API, make a first Responses API request, check for completed output, and add schema-constrained data to an application.
How-to guides
How Do I Set Up Gemini? Android App and Gemini API Steps
Choose Gemini for personal use or software integration. Follow Android setup steps or prepare a Python environment, create an API key, and send a documented test request.
How-to guides
How to Open Canvas in ChatGPT
Open a blank Canvas in ChatGPT from a desktop browser, see what to try if it is missing, and learn how Canvas differs from the production API.
Pricing and plans
Gemini 2.5 Pro API Pricing: Reported Rates and Production Budgeting
See reported Gemini 2.5 Pro API token rates, sample cost calculations, what to include for thinking tokens, and the current access and routing qualifications.
Coding agents
Claude Code and Gemini: Can You Use Gemini Inside Claude Code?
Claude Code’s documented gateways do not support routing to Gemini models. Learn how to use Gemini CLI separately or call the Gemini API from your application.
Pricing and plans
Grok 4 Free Trial: Current Access, Prices, and API Costs (2026)
Is a Grok 4 free trial available? See what xAI lists for free and paid access, how Grok 4.7 API pricing works, and which trial and billing terms remain unconfirmed.
Pricing and plans
Is the Claude API Free? Current Pricing, Credits, and Costs
The Claude API isn’t generally free for ordinary use. See current USD token prices, who may qualify for API credits, and how to estimate a production budget.
Image generation
How Many Images Can You Create With ChatGPT Free?
We could not verify a fixed image count in the official guidance reviewed. Learn what to do at the limit and how separate API image costs work for production.
Coding agents
Claude Code: How to Add an MCP Server
Add an MCP server to Claude Code with a documented command, choose local, project, or user scope, and check its connection. Learn where project configuration belongs and what to check if a server is missing.
Coding agents
Claude Code Opus 4.6: How to Select It, What It Costs, and When to Upgrade
Yes, Opus 4.6 is selectable in Claude Code if it’s available to your account. See the selection commands, Anthropic API setup and pricing, and how to evaluate it against the current Opus model.
Pricing and plans
Gemini Free Usage Limit: App vs. API
Gemini app limits depend on usage, while API free access has separate model- and project-specific limits. See what to check before budgeting API use.
Coding agents
How to Update Gemini CLI: npm, Homebrew, MacPorts, and Source
Update Gemini CLI using the method that matches your installation, verify the version, and troubleshoot failures without starting with destructive cleanup.
Pricing and plans
Is Claude Opus 4.5 Free? Free Plan, API Credits, and Pricing
Claude’s Free plan doesn’t include Opus. See Opus 4.5 API pricing, how paid-plan credits differ from free access, and what to check before a production deployment.
Coding agents
How to Use OpenAI Codex: Complete a First Coding Task
Get started with OpenAI Codex: install the desktop app, open a project, ask for a focused code change, review and test the result, and see how Codex differs from the OpenAI API.
Audio and speech
Suno Free Credits: Daily Allowance, Paid Plans, and API Options
Suno’s free plan provides 50 credits daily, with UTC replenishment and an official estimate of up to 10 songs. Compare annual plans, download limits, and API options.
Coding agents
Claude Skills Guide: Create, Test, and Use Skills with the API
Learn when to use a Claude Skill, create and test a minimal SKILL.md in Claude, and use a built-in Excel Skill through the Messages API—including how to download and check its generated workbook.
Model comparisons
Claude Ultracode vs. Max Effort: What’s the Difference?
Compare Ultracode workflows with max effort, distinguish both from the Claude Max subscription, and see what the documented API settings do—and don’t—confirm.
Video generation
OpenAI Sora 2 API Pricing: Is It Still Available?
OpenAI discontinued the Sora API on September 24, 2026. Here’s what that means for current pricing and production budgets.
Model APIs
GPT-5.2 API: Model ID, Python Setup, Pricing, and Production Checks
Learn how to make a minimal Python request to GPT-5.2 through OpenAI’s API, and review its documented model IDs, endpoints, limits, pricing, and lifecycle notes.
Pricing and plans
GPT-5.5 Token Cost: API Rates and Budget Estimate
See the GPT-5.5 rates reported by an Inworld model listing, calculate an example API budget, and learn why those figures should not be assumed to be direct OpenAI API prices.
Pricing and plans
Claude Opus 4.7 Free? Current API Prices, Access, and Budget
Find out what free Claude Opus 4.7 access is confirmed, what API use costs, and how to estimate a bill before integrating it in production.
Pricing and plans
OpenAI Embedding Pricing: Current Rates and Cost Estimates
Compare OpenAI embedding prices for standard and Batch processing, calculate a token-based budget, and see when Batch may fit your workload.