
AI API 429, 529 and 503 Errors: Retry Rules That Match the Docs
Which 429, 529 and 503 errors to retry across OpenAI, Claude, Gemini and Bedrock, how to read Retry-After, and a typed wrapper that skips quota errors.
23 articles

Gemini 4 Carbon is Google's new frontier model: 59 on the AA Intelligence Index, $2/$10 intro pricing, but cyber-defender access only. What builders do now.

Which 429, 529 and 503 errors to retry across OpenAI, Claude, Gemini and Bedrock, how to read Retry-After, and a typed wrapper that skips quota errors.

Prompt caching across OpenAI, Anthropic, Gemini, DeepSeek, Mistral, xAI and Qwen: prices, TTLs, setup code. A reused 100K prefix costs 71-93% less.

Google AI Pro costs $19.99 a month and has no API key, but includes $10 of monthly Cloud credits. When the subscription wins and when to pay per token.

Google's Gemini agent can create coworker agents with their own Workspace account, email and audit trail. What Google announced and what builders should copy.

Gemini 4 Argon for developers: what Google shipped, what is verified, why access starts narrow, and what to watch before planning a migration around it.

Gemini 3.8 Live and 3.8 Live Extended Thinking are Google's audio-to-audio voice models with background tool calls. Benchmarks, pricing and how to build.

Gemini agentic video understanding lets Flash models pick the frames, audio and transcripts to inspect, cutting tokens up to 88%. How it works and its limits.

Gemini Omni 1.1 Flash is GA in the Gemini API with 10-second scene extension, first and last frame interpolation, 360p drafts and 4K upscaling, plus pricing.

AI session portability compared across OpenAI, Anthropic, and Gemini: storage defaults, encrypted reasoning, compaction, and what you can move or audit.

Antigravity CLI vs Claude Code vs Codex: how Google's Gemini CLI replacement compares on architecture, pricing, multi-agent workflows, and daily coding.

Claude Haiku 5.5 and GPT-6 Luna both list at $0.10/$0.50 per MTok. The price tie breaks at Haiku's 100K cliff, and Anthropic's benchmarks favor Haiku. Checked Oct 8, 2026.

Gemini Robotics ER 2 is public in the Gemini API. It watches live video to track progress, orchestrates VLA models as tools, and coordinates multiple robots.
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