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xAI

HQ: United StatesDatacenters: N/aStatusPrivacyTerms

Average response time

5.91 s

Estimated 500-token answer. Across 5 models with recent complete speed data.

Average response start

1.39 s

Wait until the first token. Across 5 models with recent response start data.

Average output speed

163.8 tok/s

Generated tokens per second. Across 5 models with recent output speed data.

AI Models available from xAI

Prices and recent speed measurements below are for xAI endpoints. A 500-token response combines the wait for the first token with the time to generate 500 output tokens.

Models

Showing 8 models

  • Model
    xAI: Grok 4.5

    x-ai/grok-4.5

    Text
    Current pricing & context
    Input price
    $2 / 1M tokens
    Context
    500K
    Speed measurements
    500-token response
    7.00 s
    Response starts
    0.90 s
    Output speed
    82.0 tok/s
    Model details
    Model type
    Text
    Provider options
    1
  • Model
    xAI: Grok Build 0.1

    x-ai/grok-build-0.1

    Text
    Current pricing & context
    Input price
    $1 / 1M tokens
    Context
    256K
    Speed measurements
    500-token response
    4.82 s
    Response starts
    0.35 s
    Output speed
    112.0 tok/s
    Model details
    Model type
    Text
    Provider options
    1
  • Model
    xAI: Grok Imagine Video

    x-ai/grok-imagine-video

    Video
    Current pricing & context
    Input price
    Free
    Context
    0
    Speed measurements
    500-token response
    N/a
    Response starts
    N/a
    Output speed
    N/a
    Model details
    Model type
    Video
    Provider options
    1
  • Model
    xAI: Grok Imagine Image Quality

    x-ai/grok-imagine-image-quality

    Image
    Current pricing & context
    Input price
    Free
    Context
    65.5K
    Speed measurements
    500-token response
    N/a
    Response starts
    N/a
    Output speed
    N/a
    Model details
    Model type
    Image
    Provider options
    1
  • Model
    xAI: Grok Voice TTS 1.0

    x-ai/grok-voice-tts-1.0

    Speech
    Current pricing & context
    Input price
    $15 / 1M tokens
    Context
    15K
    Speed measurements
    500-token response
    N/a
    Response starts
    N/a
    Output speed
    N/a
    Model details
    Model type
    Speech
    Provider options
    1
  • Model
    xAI: Grok 4.3

    x-ai/grok-4.3

    Text
    Current pricing & context
    Input price
    $1.25 / 1M tokens
    Context
    1M
    Speed measurements
    500-token response
    6.78 s
    Response starts
    0.73 s
    Output speed
    83.0 tok/s
    Model details
    Model type
    Text
    Provider options
    1
  • Model
    xAI: Grok 4.20 Multi-Agent

    x-ai/grok-4.20-multi-agent

    Text
    Current pricing & context
    Input price
    $1.25 / 1M tokens
    Context
    2M
    Speed measurements
    500-token response
    5.56 s
    Response starts
    4.40 s
    Output speed
    430.0 tok/s
    Model details
    Model type
    Text
    Provider options
    1
  • Model
    xAI: Grok 4.20

    x-ai/grok-4.20

    Text
    Current pricing & context
    Input price
    $1.25 / 1M tokens
    Context
    2M
    Speed measurements
    500-token response
    5.39 s
    Response starts
    0.57 s
    Output speed
    112.0 tok/s
    Model details
    Model type
    Text
    Provider options
    1

Model data fetched .

Practical comparison guide

How to evaluate xAI as an AI inference provider

xAI currently has 8 indexed models on this site, including 5 text, 1 image, 1 video, 1 speech. This page combines the provider-specific catalog with published pricing and recent performance data so you can identify suitable models and then compare xAI with alternative hosts on each model page.

Review model coverage

xAI offers model-specific routes rather than one interchangeable service. Check modality, context window, supported inputs, and parameter support before comparing price. The largest published context window in this catalog is 2M tokens.

Interpret price and speed together

The lowest published input price shown here is Free. Recent 500-token response measurements are available for 5 models; missing measurements remain visible and are never estimated.

Confirm deployment requirements

xAI lists its headquarters as US. Published datacenter coverage: no datacenter regions are currently published. Headquarters and hosting regions describe different things, so verify data residency, service terms, and current availability directly with the provider.