# Grok 4.1 Fast (Reasoning) API pricing

No price from the maker itself is on record for Grok 4.1 Fast (Reasoning). The lowest of 8 providers is Jiekou.AI: $0.19 per 1M input tokens and $0.475 per 1M output tokens (as of 2026-11-12). Context window: 2M tokens, up to 30K output tokens per request.

- Type: Text
- Context: 2M
- Max output: 30K
- Released: 2025-11-19
- Open weights: No

## Price by provider (USD per 1M tokens)

| Provider | Model id | Input | Output | Cached | Notes |
| --- | --- | --- | --- | --- | --- |
| [Jiekou.AI](https://docs.jiekou.ai/docs/support/quickstart?utm_source=github_models.dev) | grok-4-1-fast-reasoning | $0.19 | $0.475 | — | Lowest |
| [302.AI](https://doc.302.ai) | grok-4-1-fast-reasoning | $0.2 | $0.5 | — |  |
| [FrogBot](https://docs.frogbot.ai) | grok-4-1-fast-reasoning | $0.2 | $0.5 | $0.05 |  |
| [Helicone](https://helicone.ai/models) | grok-4-1-fast-reasoning | $0.2 | $0.5 | $0.05 |  |
| [DevPass (LLM Gateway)](https://llmgateway.io/docs) | grok-4-1-fast-reasoning | $0.2 | $0.5 | $0.05 |  |
| [Vertex](https://cloud.google.com/vertex-ai/generative-ai/docs/models) | xai/grok-4.1-fast-reasoning | $0.2 | $0.5 | $0.05 | Deprecated |
| [Poe](https://creator.poe.com/docs/external-applications/openai-compatible-api) | xai/grok-4.1-fast-reasoning | — | — | — | Deprecated |
| [Qiniu](https://developer.qiniu.com/aitokenapi) | x-ai/grok-4.1-fast-reasoning | — | — | — | Deprecated |

Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.

Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.

https://apibook.ai/models/xai/grok-4.1-fast-reasoning/