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Prices, token counts and method notes. Every number has a source.
Claude API key: how to get an Anthropic API key, and what it costs
Get a Claude API key, also called an Anthropic API key, in five steps, see what a request costs on it, and run the same SDK code on one key for every model.
GPT API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every GPT model, OpenAI's list price next to ours, and what a chat turn and a long-document request cost on GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna.
DeepSeek API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every DeepSeek model, DeepSeek's list price next to ours, and what a chat turn and a long-document request cost on V4 Pro, V4.1 Flash and V4 Flash.
Gemini API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every Gemini model, Google's list price next to ours, and what a chat turn and a long-document request cost on Gemini 4 Argon, 3.1 Pro and 3.8 Flash.
Grok API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every Grok model, xAI's list price next to ours, and what a chat turn and a long-document request cost on Grok 4.7, 4.5 and 4.3.
Kimi API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every Kimi model, Moonshot AI's list price next to ours, and what a chat turn and a long-document request cost on Kimi K3, K2.7 Code and K2.5.
GLM API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every GLM model, Z.ai's list price next to ours, and what a chat turn and a long-document request cost on GLM 5.3, 5.2 and 5.3 Flash.
Qwen API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every Qwen model, Qwen's list price next to ours, and what a chat turn and a long-document request cost on Qwen3.7 Max, 3.7 Plus and 3.6 27B.
Kimi, GLM and Qwen coding plans vs pay-per-token API, October 2026
What the Kimi, Z.ai GLM and Alibaba Qwen coding plans cost and include, whether DeepSeek has a code plan, and what the same monthly money buys per token.
Using Cursor with your own API key: what it costs, October 2026
What one Cursor agent request costs on your own key, worked at each developer's list price and ours, and the four settings that point Cursor at it.
Claude API cost per request, October 2026: a chat turn and a long document
Input, cached and output prices for every Claude model, Anthropic's list price next to ours, and what a chat turn and a long-document request cost on Opus, Sonnet and Haiku.
A free AI API: $1 of credit for Claude, GPT, Gemini and more
Every new account can claim $1 of API credit that works on every model. What it buys per model, the rules, and the three steps to a working key.
The hidden prompt tokens in cheap LLM APIs
One fixed prompt of about 90 tokens went to every route of every model on 2026-10-12. Some routes reported 4,469 input tokens. Two reported 14,111.
LLM API pricing comparison, October 2026
Input, cached and output prices for every listed chat model with a developer list price, grouped by developer, the developer's price next to ours. Rebuilt from the live catalog.
Claude Code pricing, October 2026: Pro, Max and Team plans vs paying per token
Claude Code pricing for Pro, Max, Team and Enterprise, and what the same month of work costs per token at Anthropic's list price and ours.