WhichAI / Models / Grok 5

Grok 5

· verified September 8, 2026

rumored info-only reasoning

Provider

Statusrumored

AA Intelligence Indexn/a

Releasedn/a

Context windown/a

Modalitiesn/a

API price $/1M (in / out)n/a

Speedn/a

AccessNot released - repeatedly delayed (prediction markets price a near-term launch low)

The score shown is a WhichAI estimate from adjacent benchmarks, not an official measurement.

In one line

xAI's long-promised next flagship. Timelines have slipped more than once; any spec you read is speculation.

Coding88

Reasoning90

Writing78

Agents & tools88

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

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).