Articles Tagged "XAI"

LLM API Pricing Comparison - July 2026

LLM API Pricing Comparison - July 2026

Verified July 27: Claude Opus 5 lands at Opus 4.8 pricing ($5/$25) while claiming near-Fable-5 quality, Gemini 3.6 Flash cuts output pricing 17%, and Grok's whole lineup turns out to carry a 2x long-context surcharge nobody's headline price mentions.

Grok 4.5

Grok 4.5

Grok 4.5 is xAI's 1.5-trillion-parameter V9 MoE model, publicly launched July 8 at $2/M input - cheap, fast, and token-efficient, though neutral harness benchmarks put it well behind Fable 5 and Opus 4.8 on coding.

Grok 4.1 Fast

Grok 4.1 Fast

Grok 4.1 Fast is xAI's agent-optimized model with a 2M-token context window, #1 ranking on tau-bench Telecom, and one of the lowest input prices among frontier-adjacent APIs at $0.20/M tokens.

Grok 4.3 Review: xAI Bets on Price Over Prestige

Grok 4.3 Review: xAI Bets on Price Over Prestige

Grok 4.3 slashes prices by up to 83%, adds native video input and voice cloning, and carves out a credible position as the most cost-efficient frontier model - with real caveats on coding and latency.

Grok Imagine Video 1.5

Grok Imagine Video 1.5

xAI's Grok Imagine Video 1.5 is the #1-ranked image-to-video model on Artificial Analysis, generating 720p clips with native audio at $0.14/s - 86% cheaper than Sora 2 Pro.