モデルと料金体系
AIモデル利用料金とモデル移xAIは、GrokシリーズのモデルとAPIの詳細な料金体系を公開しました。
最もインテリジェントで高速なGrok 4.3が強く推奨されており、いくつかの古いモデルは2026年5月に廃止されます。
課金は、トークン使用量に加え、Web SearchやCode Executionといったサーバー側ツールの呼び出し回数に基づいて計算されます。
画像生成や音声処理などのメディア機能にも、詳細な単価が設定されています。
また、大規模な非同期処理を可能にするバッチAPIや、ファイル・コレクションのストレージ利用料も規定されています。
原文の冒頭を表示（英語・3段落のみ）
Key InformationWe offer a range of models supporting multiple use cases and modalities.Model retirement · May 15, 2026.Several older models will be retired on May 15 at 12:00pm PT, including grok-4-1-fast, grok-4-fast, grok-4, grok-code-fast-1, and grok-imagine-image-pro. See the migration guide for recommended replacements.Which model should I choose?Your choice depends on your use case. We have dedicated models and API’s for audio, image, and video capabilities. For everything else, use Grok 4.3. It is the most intelligent and fastest model we’ve built.We strongly recommend all API callers use grok-4.3. It is the most intelligent and fastest model we've built.ModelContextInputOutputgrok-4.31M$1.25$2.50grok-4.20-multi-agent-03092M$1.25$2.50grok-4.20-0309-reasoning2M$1.25$2.50grok-4.20-0309-non-reasoning2M$1.25$2.50grok-4-1-fast-reasoning2M$0.20$0.50grok-4-1-fast-non-reasoning2M$0.20$0.50Prices shown per million tokensCreate and edit stunning images and videos, offering precise control and cutting edge fidelity.ModelCostgrok-imagine-image-quality$0.05 / imagegrok-imagine-image-pro$0.07 / imagegrok-imagine-image$0.02 / imagegrok-imagine-video$0.05 / secStream and generate expressive, authentic voices and transcribe back to text with ease.ModeCostRealtime$0.05 / min ($3.00 / hr)Text to Speech$4.20 / 1M charactersSpeech to Text$0.10 / hr (REST), $0.20 / hr (Streaming)Tools PricingRequests which make use of xAI provided server-side tools are priced based on two components: token usage and server-side tool invocations. Since the agent autonomously decides how many tools to call, costs scale with query complexity.Token CostsAll standard token types are billed at the rate for the model used in the request:
Input tokens: Your query and conversation history
Reasoning tokens: Agent's internal thinking and planning
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