xAI guides
Batch API: when half price is worth the wait
What the Batch API saves on Claude, GPT-6, Gemini, Grok and Mistral for 100,000 summaries, from official prices, plus DeepSeek's off-peak.
What 1,000 AI API requests cost on 19 models (October 2026)
Dollar cost of 1,000 chat, coding-agent and summary requests on Claude, GPT-6, Gemini, Grok, DeepSeek and Mistral, from official list prices.
What a context window is, and when you actually need 1M tokens
What counts toward an AI model's context window, how big it is on Claude, GPT-6, Gemini, Grok, DeepSeek and Mistral, and what a 1M-token request costs.
Prompt caching in practice: what it saves on Claude, GPT-6, Gemini and DeepSeek
How much prompt caching cuts your AI API bill, worked out from official prices for 14 models: cache read discounts, agent and document examples, write costs.
ChatGPT vs Claude vs Gemini subscriptions: which plan is worth it
ChatGPT Go, Plus and Pro, Claude Pro and Max, Google AI Plus, Pro and Ultra compared: price, models, limits, extras, and when the API is cheaper.
Claude Max vs Ultra: what changed and which plan to pick
Max 20x is now Claude Ultra at $200. What Max ($100) and Ultra include, how the API credits work, and what they buy at Claude API prices.
DeepSeek V4 Pro and V4.1 Flash explained: peak vs off-peak pricing
DeepSeek's two API models, their peak and off-peak prices, when the cheap hours are, and what 1,000 requests cost against Claude, GPT-6, Gemini and Grok.
GPT-6.1 Terra explained: price, context and where it fits
GPT-6.1 Terra costs $1 / $5 per million tokens with $0.05 cache reads and a 1.05M context. What it costs vs GPT-6.1 Sol, Claude, Gemini and DeepSeek.
Grok 4.7 explained: price, 500K context and where it fits
Grok 4.7 costs $2 / $6 per million tokens with $0.50 cache reads and a 500K context. Costs vs Claude, GPT-6.1 Sol and Gemini, worked out from list prices.
Sora alternatives after the API shutdown: Veo, Runway, Luma, Pika and more by price
Sora's API closed on Sept 24, 2026. What an 8-second clip costs on Veo 3.1, Runway, Luma, Pika, Seedance, MiniMax and Grok Imagine, from official prices.
Midjourney vs API image models: when a subscription beats pay-per-image
Midjourney plans cost $10 to $120 a month. We work out its cost per image and compare it with Nano Banana, Imagen, FLUX, Grok Imagine and other image APIs.
Gemini 4 Argon explained: price, 1M context and what it really costs
Gemini 4 Argon costs $2 / $10 per million tokens until November 30, then $4 / $20. Costs vs Claude, GPT-6 and Grok, worked out from official list prices.