AI model comparison
Compare recorded price, context, output limits, speed, latency, capabilities, and input/output support. Every missing value stays visible, and unsourced benchmarks are excluded.
This Grok 4 1 Fast Non Reasoning vs Grok 4 1 Fast Reasoning comparison is designed for teams choosing between two production model records, not for declaring a universal winner. Grok 4 1 Fast Non Reasoning by Xai via Requesty currently records 2M context, 30K maximum output, $0.20 input per 1M tokens, $0.50 output per 1M tokens. Grok 4 1 Fast Reasoning by Xai via Requesty records 2M context, 30K maximum output, $0.20 input per 1M tokens, $0.50 output per 1M tokens. The tables below separate documented capabilities, commercial limits, directory measurements, and source-linked benchmark evidence so you can see where the data is complete and where independent testing is still required.
Xai via Requesty
A frontier multimodal model optimized specifically for high-performance agentic tool calling.
Accepts
Produces
Xai via Requesty
A frontier multimodal model optimized specifically for high-performance agentic tool calling.
Accepts
Produces
At a glance
This is a directional summary of the values recorded in this directory—not a universal quality verdict. Test the finalists on your own prompts before committing.
Where Grok 4 1 Fast Non Reasoning leads in recorded data
No complete recorded factor currently favors this model. That does not establish lower real-world quality.
Where Grok 4 1 Fast Reasoning leads in recorded data
No complete recorded factor currently favors this model. That does not establish lower real-world quality.
Context capacity
Higher listed limit
Grok 4 1 Fast Non Reasoning:2M
Grok 4 1 Fast Reasoning:2M
Same recorded value
Maximum output
Higher listed limit
Grok 4 1 Fast Non Reasoning:30K
Grok 4 1 Fast Reasoning:30K
Same recorded value
Input price
Lower recorded price
Grok 4 1 Fast Non Reasoning:$0.20
Grok 4 1 Fast Reasoning:$0.20
Same recorded value
Output price
Lower recorded price
Grok 4 1 Fast Non Reasoning:$0.50
Grok 4 1 Fast Reasoning:$0.50
Same recorded value
Output speed
Higher recorded throughput
Grok 4 1 Fast Non Reasoning:—
Grok 4 1 Fast Reasoning:—
No complete comparison
Time to first token
Lower recorded latency
Grok 4 1 Fast Non Reasoning:—
Grok 4 1 Fast Reasoning:—
No complete comparison
Intelligence Index
Higher directory index
Grok 4 1 Fast Non Reasoning:—
Grok 4 1 Fast Reasoning:—
No complete comparison
Evidence
A score appears only when both records include a verified source. It is not treated as a universal ranking.
Specifications
| Specification | Grok 4 1 Fast Non Reasoning | Grok 4 1 Fast Reasoning |
|---|---|---|
| Provider | Xai via Requesty | Xai via Requesty |
| Model family | — | — |
| Accepted inputs | text, image | text, image |
| Produced outputs | text | text |
| Context window | 2M | 2M |
| Max output | 30K | 30K |
| Intelligence Index | — | — |
| Input price / 1M | $0.20 | $0.20 |
| Output price / 1M | $0.50 | $0.50 |
| Output speed | — | — |
| Time to first token | — | — |
| Reasoning mode | Not documented | Documented |
| Tool calling | Documented | Documented |
| Image input | Documented | Documented |
| Audio input | Not documented | Not documented |
| Structured output | Documented | Documented |
| License | Not documented | Not documented |
| Released | Nov 19, 2025 | Nov 19, 2025 |
Workload guidance
Grok 4 1 Fast Non Reasoning has no complete recorded factor that establishes a lead. Grok 4 1 Fast Reasoning has no complete recorded factor that establishes a lead. Choose according to the constraints that matter to your workload, then run the same representative prompts against both models before making a production commitment. Neither the larger number nor the lower price is automatically the better choice: prompt quality, tool reliability, modality support, rate limits, data policy, and provider implementation can change the result. Use this page to build a shortlist, confirm current terms in the linked sources, and validate quality, latency, and cost with your own traffic.
Provenance
Prices and hosted performance can change. SyncDev records source references and clearly separates documented specifications from measured values; confirm commercial terms with the provider before deployment.
Grok 4 1 Fast Non Reasoning
Xai via Requesty · model record and recorded source
Grok 4 1 Fast Reasoning
Xai via Requesty · model record and recorded source
Choose any two approved model records and review them with the same evidence rules.