WhichAI / Models / Grok 4.5

Grok 4.5

xAI · verified October 14, 2026

public paid api in Generator coding agents value
ProviderxAI
Statuspublic
AA Intelligence Index38.8 (official, read October 14, 2026)
Released2026-07-08
Context window500K
Modalitiesn/a
API price $/1M (in / out)$2 / $6
Speed~80 tok/s, high token efficiency
AccessReleased July 8, 2026 · API $2/$6 per 1M tokens · in Grok Build & Cursor · not yet in the EU

In one line

xAI's first model built specifically for coding and agents: a 1.5T-parameter base trained on real Cursor sessions, at a fraction of flagship prices. Note before you commit: EU availability is still pending.

Coding89
Reasoning84
Writing74
Agents & tools90

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

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Head-to-head: Grok 4.5 vs GPT-5.6 Terra

Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 14, 2026. 209 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (the Ranking chapter and About > Methodology).