Claude Haiku 5.5's 100K-Token Cliff Turns $0.10 Into $0.50
Claude Haiku 5.5 ties GPT-6 Luna at $0.10/$0.50 per million tokens up to 100,000 prompt tokens, then bills 5x Luna. The cache and tokenizer catches.
ReadProduct updates, AI tips, and deep dives into multi-model chat workflows.
Claude Haiku 5.5 ties GPT-6 Luna at $0.10/$0.50 per million tokens up to 100,000 prompt tokens, then bills 5x Luna. The cache and tokenizer catches.
ReadOne chat message across 13 models: GPT-6 Luna and Claude Haiku 5.5 tie at $1.52 per 1,000, and GPT-5.6 Cyber tops the index at $215.25.
Free Gemini drops to Flash-Lite on October 9; Flash and Pro move behind paid plans. The models it loses cost $11.34 and ~$40 per 1,000 messages on the API.
Gemini 4 Argon's intro price is $2/$10, with a fine-print $4/$20 after it ends. What 1,000 chat messages cost on both cards, and why you can't use it yet.
Run a repo history scan, read provider usage pages, and watch for provider signals. Three passes, plus the order of operations when a check finds a key.
Create a key in the provider console, paste it into the chat app, send a test message. The 3-step flow for OpenAI, Anthropic, Google, xAI, and OpenRouter.
Your API bill is tokens × rate times a multiplier stack most calculators ignore. Five steps to a usable estimate for a 3,000-message month, $2 to $78.
GPT-6 Sol and Luna halve to $2/$10, Claude Opus 5.5 lands at $4/$20, Grok 4.7 holds $2/$6, and OpenRouter's Batch API takes ~50% off. Bill math inside.
All five major providers offer a way to watch spend and at least one way to stop it. What each enforces, where the settings live, and where the caps leak.
Gemini 3.8 Live costs $0.005/min audio in and $0.018/min out (~$1.35/hr). Per-call math, monthly profiles, and an OpenAI voice comparison for 2026.