Gemini Flash API Guide: Pricing & Which Flash to Use
A practical Gemini Flash API guide — 3.5 Flash, 2.5 Flash and Flash-Lite pricing compared, when each fits, and how Flash beats Pro on value for most production traffic.
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Claude Sonnet API Guide: Pricing & When to Use It Over Opus
A practical Claude Sonnet 4.6 API guide — near-Opus quality at $3/$15 per million tokens. Pricing, strengths, and when Sonnet is the smarter, cheaper choice than Opus.
Claude Haiku API Guide: Cheapest Claude at $1/$5 per Million
A practical Claude Haiku 4.5 API guide — Anthropic's fastest, cheapest model at $1/$5 per million tokens. When Haiku is enough, and when to escalate to Sonnet or Opus.
AI Video With Audio: Best Models for Synced Sound in 2026
The best AI video models with native audio in 2026 — Seedance, Kling, HappyHorse and Wan generate synced dialogue, ambience and lip-sync in one pass. Compared with code.
AI Poster Generator API: Design Posters With Text at Scale
How to generate posters via API in 2026 — models that nail dense layouts and legible headlines (Seedream, GPT Image 2, Nano Banana Pro), with code and prompt tips.
AI Avatar Video API: Put a Real Person in AI Video (2026)
How to generate AI avatar and talking-head videos via API in 2026 — Wan 2.6 role-play plus Seedance and Kling for consistent faces and synced voice. Models, code and tips.
AI API Rate Limits Explained: RPM, TPM, 429s & How to Handle Them
A developer's guide to AI API rate limits — RPM vs TPM, why you hit 429 errors, exponential backoff, and how gateways with pooled capacity smooth throughput.
AI API Latency Guide: TTFT, Throughput & How to Make It Fast
A guide to AI API latency in 2026 — TTFT vs tokens-per-second, what makes responses slow, model speed differences, and practical ways to make your app feel fast.
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AI API for Mobile Apps in 2026: Fast, Cheap, One Integration
How to add AI to mobile apps in 2026 — pick fast low-latency models, keep per-user cost tiny, secure your API key with a backend proxy, and ship image, video and chat features.
How to Use the Seedance 2.0 API: Complete Guide & Examples
A hands-on Seedance 2.0 API tutorial: authentication, your first video, text-to-video and image-to-video, the @ reference system, polling, and error handling.
![GPT Image 2 Prompting Guide: Tips & Examples [2026]](https://static.linkmodel.ai/blog-cover/cover-gpt-image-2-prompts.png)
GPT Image 2 Prompting Guide: Tips & Examples [2026]
Get more from GPT Image 2 — prompt patterns for perfect text rendering, precise layouts, reliable editing, and reference images, with copy-ready examples.
GPT Image 1 API: Access, Pricing & Why to Move to GPT Image 2
Using the GPT Image 1 API in 2026? It's deprecating October 23, 2026. Here's its pricing, how it compares to GPT Image 2, and how to migrate before the shutdown.
How to Build an AI App with Multiple Models (Single API Key)
A practical architecture for building AI apps on multiple models — the gateway pattern, model-by-parameter switching, async task handling, routing, and fallbacks.
Gemini 3.1 Flash Lite Image API: Nano Banana Lite Guide
Google's Gemini 3.1 Flash Lite Image — nicknamed Nano Banana Lite. Specs, pricing, Nano Banana 2 vs Nano Banana Lite comparison, and how to try via API.
Seedance 2.0 API: Cinematic Video + Camera Control Guide
Use Seedance 2.0 API for cinematic video — dolly zooms, tracking shots, 8-language lip-sync. Full prompt engineering guide included.
Kling V3 API Guide: Pricing, Audio & Multi-Shot Video
Kling V3 API guide with asynchronous code examples, current pricing dimensions, 720p and 1080p output, multi-shot controls, native audio, and production safeguards.
GPT Image 2 API: 99% Text Accuracy at 25% Off — Guide | LinkModel
Developer guide for GPT Image 2 API via LinkModel. 99%+ text rendering, reasoning-based generation, image editing. Code examples and pricing comparison.
Seedance 2.0 Prompting Playbook: Direct ByteDance's Video Model
Prompt ByteDance's Seedance 2.0 like a director: the 8-element formula, shot-by-shot structure, and fixes for face drift and unwanted subtitles.