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Developer guides, tutorials, and insights on AI tools, MCP servers, model pricing, and prompt engineering. Stay ahead with DevTk.AI.
MCP vs A2A: The Two Protocols Shaping the AI Agent Ecosystem (2026)
A comprehensive comparison of Anthropic's Model Context Protocol (MCP) and Google's Agent-to-Agent Protocol (A2A). Learn when to use each, how they complement each other, and their impact on AI development.
AI Video API Pricing 2026: Seedance vs Sora vs Kling vs Veo
Compare AI video generation API costs — Seedance 2.0, Sora 2, Kling 3.0, Veo 3.1, Runway Gen-3. Per-second pricing, free tiers, resolution, and developer integration guide. Updated Feb 2026.
Gemini 3.1 Pro Pricing: $2.00/$12 per M — 1M Context, Video
Google Gemini 3.1 Pro costs $2.00 input / $12.00 output per 1M tokens. 77.1% ARC-AGI-2 score, native video understanding, 1M context window, free tier available. Pricing vs GPT-5, Claude Opus 4.6.
GPT-5.3 Codex Pricing: $2/$10 per M — Agentic Coding Model
OpenAI GPT-5.3 Codex costs $2 input / $10 output per 1M tokens. Built for agentic coding, 25% faster than GPT-5.2, 200K context, 32K max output. Pricing comparison vs Claude Sonnet 4.5, Gemini 3.1 Pro.
Claude vs GPT-5 for Coding: Benchmarks & Real Tests (2026)
Claude Opus 4.5 scores 72% SWE-bench vs GPT-5 at 69% — but costs 4x more ($5 vs $1.25/M input). Side-by-side code generation tests, debugging benchmarks, and the best model for each budget.
AI API Rate Limits 2026: GPT-5 (30M TPM), Gemini (10M TPM) & Claude 4.6
Updated March 2026. Compare official rate limits: OpenAI (30M TPM), Gemini (10M TPM), and Claude 4.6 (400K TPM). Learn how to bypass 429 errors with tier-scaling and failover strategies.
AI Structured JSON Output: Model Support & Code Examples (2026)
GPT-5 guarantees 100% schema adherence, Claude uses tool_use, Gemini has native response schemas. Compare JSON mode, function calling, and strict mode across all major models with Python & TypeScript examples.
Build Your First MCP Server: Step-by-Step TypeScript Tutorial (2026)
Complete guide to building a Model Context Protocol server in TypeScript. From zero to a working MCP server in 30 minutes. Includes tools, resources, prompts, and integration with Claude Desktop.
Google Gemini API Pricing (March 2026): 3.1 Pro, 2.5 Flash + Free Tier
Updated March 2026. Gemini API pricing: 3.1 Pro $2/$12, 2.5 Pro $1.25/$10, 2.5 Flash $0.15/$0.60 per 1M tokens. Free tier with 1M context window. Compare vs GPT-5, Claude, and DeepSeek.
Cut AI API Costs 80%: 8 Proven Strategies (2026)
Reduce LLM API spend with prompt caching (90% off), batch API (50% off), smart model routing, and 5 more strategies. Code examples for OpenAI, Claude, Gemini, DeepSeek. From $3,150/mo to $420.
Mistral API Pricing 2026: Small $0.20/M, Large $2/M + Free Tier
Mistral AI API pricing for 2026: Large 3 at $2/$6, Medium 3 $1/$3, Small 3.1 $0.20/$0.60 per 1M tokens. Free tier included, GDPR-compliant EU hosting. Comparison with GPT-5, Claude, DeepSeek.
OpenAI API Pricing (March 2026): GPT-5, GPT-4.1, GPT-4o, o3 Per-Token Costs
Updated March 2026. All 9 OpenAI model prices: GPT-5 $1.25/$10, GPT-4.1 $2/$8, GPT-4o $2.50/$10, o3 $2/$8 per 1M tokens. Free tier + batch API 50% off. Side-by-side vs Claude, Gemini, DeepSeek.
Grok API Pricing 2026: Grok 3 $3/M, Mini $0.30/M + $25 Free
xAI Grok API pricing for 2026: Grok 3 at $3/$15, Grok 3 Mini at $0.30/$0.50 per 1M tokens. Free $25 signup credit, 128K context. Side-by-side comparison with GPT-5, Claude, DeepSeek.
Self-Host LLM vs API: Real Cost Breakdown 2026
Self-hosting Llama 4 on a $2/hr GPU vs GPT-5 API at $1.25/M tokens — breakeven at ~6.8M tokens/month. We compare GPU rental, electricity, staffing, and 5 hidden costs most teams miss.
Claude API Pricing Guide 2026: Opus 4.6 ($5), Sonnet 4.6 ($3) & Haiku 4.5 ($1)
Updated March 2026. Official Claude 4.6 pricing: Opus ($5/$25), Sonnet ($3/$15), and Haiku ($1/$5) per 1M tokens. Save 90% with prompt caching. Compare with GPT-5 & DeepSeek.
DeepSeek API Pricing (March 2026): V3.2 $0.27/M — 80% Cheaper Than GPT-5
Updated March 2026. DeepSeek API pricing: V3.2 $0.27/$1.10, R1 $0.55/$2.19 per 1M tokens. Free tier included, OpenAI-compatible. The cheapest production AI API — full cost breakdown vs GPT-5, Claude, Gemini.
AGENTS.md: The Open Standard for Guiding AI Coding Agents (2026 Guide)
Learn how to write an AGENTS.md file that works with Claude Code, GitHub Copilot, Cursor, Devin, and more. Includes templates, best practices, and a free online generator.
Best Free AI Tools for Developers in 2026: The Complete Guide
Discover the best free AI tools for developers in 2026. From code assistants to local LLM runners, find free tiers and deals that will supercharge your AI development workflow.
AI API Pricing Comparison (March 2026): 40+ Models Side-by-Side Table
Updated March 2026. Compare all AI API prices in one table: DeepSeek V3.2 $0.27/M, Gemini 3.1 Pro $2/M, GPT-5 $1.25/M, Claude Opus $5/M. 7 providers, free tiers, monthly cost estimates.
The Complete Guide to AI Coding Rules: .cursorrules, CLAUDE.md & More
Master AI coding assistant configuration with .cursorrules, CLAUDE.md, .windsurfrules, and copilot-instructions.md. Learn how to customize AI behavior for your projects.
How to Choose the Right AI Model for Your Project in 2026
A practical decision framework for choosing between GPT-5, Claude Opus 4, Gemini 2.5 Pro, DeepSeek, and open-source models. Covers use case categories, cost vs quality tradeoffs, and a step-by-step decision tree for developers.
LLM Context Windows Explained: 4K to 1M Tokens (2026)
Gemini supports 1M tokens, GPT-5 handles 400K, Claude offers 200K — but how much can you actually use? Token limits, real-world capacity, and 5 strategies (RAG, chunking, sliding window) for long-context apps.
What is MCP? Complete Developer Guide to Model Context Protocol
Learn everything about MCP (Model Context Protocol) — what it is, how it works, how to set up MCP servers, and why it's transforming AI-powered development in 2026.