Kiwi Ultra

kiwi-ultra

Highest depth assistant for long-form reasoning and premium output quality.

Legacy premium lane retained in the catalog after public deprecation.

Model Profile

What this model is best for and what it runs on.

Best-use cases

Executive briefs

long-form strategy

and advanced reasoning tasks.

Based on AI model

Workers AI runtime default (ultra quality profile)

Provider

Cloudflare Workers AI

Usage + Access

This model is deprecated and kept visible for compatibility and lineage only.

EOL: 09.03.2026

New public API traffic should use model: "auto" or one of the current direct models.

Capabilities

What this model does especially well.

Strong fit for executive briefs.

Strong fit for long-form strategy.

Strong fit for and advanced reasoning tasks..

Advantages

Why you would choose this model over other options.

Provider lineage remains explicit through Cloudflare Workers AI.

Useful when you want highest depth assistant for long-form reasoning and premium output quality.

Deprecated with EOL on 09.03.2026.

Related Models

DeprecatedEOL: 09.03.2026

Kiwi Nano

kiwi-nano

DeprecatedEOL: 09.03.2026

Kiwi Smart

kiwi-smart

DeprecatedEOL: 09.03.2026

Kiwi Pro

kiwi-pro