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X-Ai/Grok-4-Fast-Non-Reasoning
xai·xai/grok-4-fast-non-reasoning·GA·Closed·grok series
Fast Grok model for responsive chat, reasoning, and tool-assisted work
At a glance
Reference price$0.20 / $0.50 per 1M
Cache read $0.05 · Helicone
Lowest paid$0.20 / $0.50
Helicone Gateway
Context2,000,000
Output limit2,000,000
Capabilities
Reasoning✓ Tool useStructured output✓ Temperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImageAudioVideo
Knowledge cutoff2025-09
Released / updated2025-12-18 / 2025-12-18
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 2 providers1 with public prices
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Helicone$47.00
The cheapest paid channel is the only channel.
Related models
Grok 4.6same series$2.00 / $6.00Grok 4.6 (xAI)same series$2.00 / $6.00Grok 4.6 (AWS Bedrock)same series$2.00 / $6.00Lyria 3 Clip Previewcheaper alternative$0 / $0Gemini 2.0 Flash-Litecheaper alternative$0.075 / $0.30Lyria 3 Pro Previewcheaper alternative$0 / $0
Price historyone sample accumulated per data sync
Input listOutput listMin blended