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xAI · Text model · GA
xAI: fast, reliable model with strong tool calling and instruction following docs.x.ai (opens in a new tab)
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Figures checked 1 Nov 2026. A dash means not published on the sources we checked, so it stays blank rather than estimated.
xAI names these settings reasoning effort. Price per token is the same at every level. Higher levels usually use more output tokens. docs.x.ai (opens in a new tab)
| Level | When to use it, per xAI | AA index | Tokens/s |
|---|---|---|---|
| none | No per-level advice published | – | – |
| low default | No per-level advice published | – | – |
| medium | No per-level advice published | – | – |
| high | No per-level advice published | – | – |
| xhigh | No per-level advice published | – | – |
Our rule of thumb: Simple or speed-critical work: low. Standard work: the lab's default. Complex work: high. Use xhigh or max only when your own tests show a gain, as OpenAI and Anthropic both advise. developers.openai.com (opens in a new tab)platform.claude.com (opens in a new tab)
US$ per 1M tokens, standard tier, short prompts. Output left blank where not published.
| Model | Input US$/1M | Output US$/1M |
|---|---|---|
| Grok 4.3 | 1.25 | 2.5 |
| Gemini 3.6 Flash | 0.75 | 3.75 |
| Grok 4.20 | 1.25 | 2.5 |
| Grok 4.20 Multi-Agent (beta) | 1.25 | 2.5 |
| GPT-5.4 mini | 0.75 | 4.5 |
| Lab | xAI |
|---|---|
| Type | Text |
| Status | GA docs.x.ai (opens in a new tab) |
| Released | – |
| API access | Yes docs.x.ai (opens in a new tab) |
| API model ID | grok-4.3 docs.x.ai (opens in a new tab) |
| API rate limits | Default: 37 requests a second, 10,000,000 tokens a minute docs.x.ai (opens in a new tab) |
| Consumer app plans | – |
| Price at each level | Same per-token price at every level. docs.x.ai (opens in a new tab) |
| Input per 1M tokens | US$1.25 docs.x.ai (opens in a new tab)Up to 200K prompt. US$2.50 in, US$5 out above |
| Output per 1M tokens | US$2.5 docs.x.ai (opens in a new tab)Up to 200K prompt. US$2.50 in, US$5 out above |
| Cached input | US$0.2 docs.x.ai (opens in a new tab) |
| Batch in / out | – |
| Other pricing | – |
| Context window | 1M tokens docs.x.ai (opens in a new tab) |
| Max output | – |
| Input types | text, image docs.x.ai (opens in a new tab) |
| Output types | text |
| Weights | Closed docs.x.ai (opens in a new tab) |
| Reasoning | Yes docs.x.ai (opens in a new tab) |
| Tool use | Yes docs.x.ai (opens in a new tab) |
| Artificial Analysis index | – |
| Output speed | – |
| Time to first token | – |
| Reasoning levels | none, low (default), medium, high, xhigh docs.x.ai (opens in a new tab) |
| Lab benchmark claims | – |
| Limitations | – |
xAI API: xAI API only: remote MCP in the Responses API, the native SDK and the Speech to Speech API. Streaming HTTP and SSE. Not the Grok app, Grok Bot or Grok Build. docs.x.ai (opens in a new tab). These official remote MCP servers fit that rule. We have not tested each server with this model. A server that publishes a client list is left out when this lab is not on it.
Same type, closest on quality index and blended price. A similarity, not a ranking.
All 109 AI models · AI agents · How we check sources
xAI 
The Super Intelligence segment made $7.5bn of revenue in Q3. Musk said the limit on deploying AI is "more in power and cooling and infrastructure than it is in chips".
Source: TechCrunch (opens in a new tab)
xAI
SpaceXSI says its new speech-to-speech model sets a record for resolving customer support calls, at the same API price as Grok Voice 2.0.
Source: SpaceXSI (opens in a new tab)
xAI
Grok 4.7 uses a larger base model than Grok 4.6, at the same price and speed: from $2 per 1M input and $6 per 1M output tokens.
Source: SpaceXSI (opens in a new tab)
