Grok 4.1 Fast: API pricing, providers and specs
Grok 4.1 Fast is a text model by xAI. 10 providers serve it, from $0.475 to $2.50 /1M; the lowest price is at Jiekou.AI.
How Grok 4.1 Fast compares
Against the 737 text models on the site priced the same way.
- Cheap for its class: at $0.475 /1M, its lowest price undercuts 67% of comparable models (median $1.10).
- Its 2M-token context window is larger than 99% of them (median 262K), about 3000 pages of text.
- On LMArena's Text board it ranks #39 of the 120 comparable models scored there.
- 10 providers serve it; 77% of comparable models have fewer.
Grok 4.1 Fast prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 Jiekou.AI | $0.19/1M | $0.475/1M | — | — |
 Ofox | $0.20/1M | $0.50/1M | $0.05/1M | 2M |
 Vertex | $0.20/1M | From$0.50/1M | $0.05/1M | — |
 Helicone | $0.20/1M | From$0.50/1M | $0.05/1M | — |
| DevPass (LLM Gateway) | $0.20/1M | From$0.50/1M | — | — |
 LaoZhang API | $0.20/1M | $0.50/1M | — | — |
 AIHubMix | $0.20/1M | $0.50/1M | $0.05/1M | 1M |
 Requesty | $0.20/1M | From$0.50/1M | $0.05/1M | 2M |
 Azure | $0.20/1M | From$0.50/1M | — | — |
| AI/ML API | $1.25/1M | $2.50/1M | $0.20/1M | — |
- Jiekou.AI$0.475
- Ofox$0.50
- LaoZhang API$0.50
- AIHubMix$0.50
- VertexFrom$0.50
- HeliconeFrom$0.50
- DevPass (LLM Gateway)From$0.50
- RequestyFrom$0.50
- AzureFrom$0.50
- AI/ML API$2.50
Specs
- Type
- Text
- Maker
- xAI
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 2M≈ 3000 pages of text
- Max output
- 30K
- Capabilities
- Prompt caching, JSON, Tool calling, Vision
- Released
- Nov 19, 2025
- License
- —
- Open weights
- —
- Arena score
- 1408Text
Alternatives to Grok 4.1 Fast
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Grok 4.1 Fastthis model | $0.475/1M | 2M | 1408 | 10 |
 GLM-5.3 | $1.10/1M | 1.05M | 1623 | 49 |
| GLM-5.3-Flash | $0.20/1M | 1.05M | 1608 | 45 |
 Qwen3.8 27B | $0.50/1M | 262K | 1591 | 33 |
| GPT-6 Luna | $0.40/1M | 1.05M | 1578 | 28 |
 Sonar | $1/1M | 127K | — | 9 |
| Claude Haiku 5.5 | $0.30/1M | 1M | 1585 | 27 |
 MiMo-V2.6-Pro | $0.696/1M | 1.05M | 1625 | 21 |
| Qwen3.8 Flash Next | $0.376/1M | 262K | 1628 | 5 |
More from xAI
Grok 4.1 Fast FAQ
The lowest price for Grok 4.1 Fast is $0.475 /1M, at Jiekou.AI.
Jiekou.AI, at $0.475 /1M. 10 providers serve Grok 4.1 Fast; the table above lists every one with its price.
Grok 4.1 Fast reads up to 2M tokens per request and writes up to 30K.
We have not found Grok 4.1 Fast's weights published by its maker.
10 API providers serve Grok 4.1 Fast. Compare their prices above, or open a provider to see everything it offers.
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