Model catalog

xAI Models

Browse the AI models associated with xAI. Compare current and historical models by family, capabilities, context window, availability and intended use.

18 models tracked
18 Total models
12 Model families
7 Model types
18 Current / accessible
All models

xAI model catalog

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Grok 4

Grok 4.3

Long-context analysis, enterprise agents, research, coding assistance, structured extraction and tool-enabled workflows

Type Multimodal
Context 1M
Reasoning 9/10
Speed 9/10
Multimodal Image input Tool use
Status

current

Input $1.25 per 1M tokens below 200K prompt tokens; $2.50 per 1M tokens at or above 200K prompt tokens
Output $2.50 per 1M tokens below 200K prompt tokens; $5.00 per 1M tokens at or above 200K prompt tokens
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Grok 4

Grok 4.5

Software engineering, codebase analysis, technical reasoning, long-context work, tool-using agents, document analysis, and structured workflow automation

Type Coding
Context 500K
Reasoning 9/10
Speed 8/10
Multimodal Image input Tool use
Status

current

Input $2.00 per 1M tokens; $0.30 per 1M cached tokens; long context of 200K tokens or more: $4.00 input and $0.60 cached input per 1M tokens
Output $6.00 per 1M tokens; long context of 200K tokens or more: $12.00 per 1M tokens
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Grok 4

Grok 4.7

Advanced software engineering, long-context reasoning, agentic tool use, research with web or X search, and professional knowledge work.

Type Reasoning
Context 500K
Reasoning 9/10
Speed 8/10
Multimodal Image input Tool use
Status

Current; available through the xAI API, Grok Build, Cursor, and selected model gateways.

Input $2.00 per 1 million input tokens below 200,000 prompt tokens; $0.50 per 1 million cached input tokens; $4.00 per 1 million input tokens above 200,000 prompt tokens; $1.00 per 1 million cached input tokens above 200,000 prompt tokens.
Output $6.00 per 1 million output tokens below 200,000 prompt tokens; $12.00 per 1 million output tokens above 200,000 prompt tokens.
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Grok 4.6

Grok 4.6

Agentic coding, long-context software engineering, research, knowledge work, visual analysis, structured extraction, and tool-using workflows.

Type Reasoning
Context 500K
Reasoning 9/10
Speed 8/10
Multimodal Image input Tool use
Status

Current and available; superseded as xAI's flagship by Grok 4.7 but still supported on the xAI API.

Input $2.00 per 1M tokens below 200k prompt tokens; $4.00 per 1M tokens at 200k tokens or more. Cached input is $0.50 per 1M tokens below 200k and $1.00 per 1M tokens at 200k or more.
Output $6.00 per 1M tokens below 200k prompt tokens; $12.00 per 1M tokens at 200k tokens or more.
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Low-latency coding, interactive development, and agentic workflows in Cursor or Grok Build

Type General Purpose
Context 500K
Reasoning 9/10
Speed 10/10
Multimodal Image input Tool use
Status

Available as a faster-serving variant in Cursor and Grok Build; not available as a separate public xAI API model

Input 2x standard Grok 4.7 input-token rate where Fast pricing applies; standard Grok 4.7 API rate is $2 per 1M input tokens
Output 2x standard Grok 4.7 output-token rate where Fast pricing applies; standard Grok 4.7 API rate is $6 per 1M output tokens
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Deep research, parallel investigation, long-context analysis, and tool-assisted synthesis

Type Reasoning
Context 1M
Reasoning 9/10
Speed 5/10
Multimodal Image input Tool use
Status

Beta; currently available through the xAI API

Input $1.25 per 1M tokens; $2.50 per 1M tokens for requests at or above 200K input tokens
Output $2.50 per 1M tokens; $5.00 per 1M tokens for requests at or above 200K input tokens
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Fast general-purpose text generation, image-aware analysis, coding assistance, structured extraction, tool-calling agents and large-context workflows

Type General Purpose
Context 1M
Reasoning 6/10
Speed 9/10
Multimodal Image input Tool use
Status

current

Input $1.25 per 1M tokens; $0.20 per 1M cached tokens. Long-context requests at or above 200K prompt tokens: $2.50 per 1M input tokens; $0.40 per 1M cached tokens.
Output $2.50 per 1M tokens; $5.00 per 1M tokens for long-context requests at or above 200K prompt tokens.
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Complex reasoning, coding, technical research, long-context document analysis, image understanding, structured responses, and tool-enabled agentic workflows

Type Reasoning
Context 1M
Reasoning 8/10
Speed 8/10
Multimodal Image input Tool use
Status

current

Input $1.25 per 1M tokens for prompts under 200K tokens; $2.50 per 1M tokens for prompts at or above 200K tokens; cached input is $0.20 or $0.40 per 1M tokens respectively
Output $2.50 per 1M tokens for prompts under 200K tokens; $5.00 per 1M tokens for prompts at or above 200K tokens
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Grok Build

Grok Build 0.1

Agentic coding, web development, debugging, software engineering workflows, MCP integrations, and fast tool-calling applications.

Type Coding
Context 256K
Reasoning 8/10
Speed 9/10
Multimodal Image input Tool use
Status

Current; public beta

Input $1.00 per 1M input tokens; $0.20 per 1M cached input tokens. Long-context pricing for prompts exceeding 200K tokens is $2.00 per 1M input tokens and $0.40 per 1M cached input tokens.
Output $2.00 per 1M output tokens; $4.00 per 1M output tokens when the prompt exceeds 200K tokens.
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API-based text-to-image generation, image editing, visual prototyping, creative applications, and per-image billing

Type Other
Context 1K
Reasoning 1/10
Speed 7/10
Multimodal Image input Media output
Status

Current and available through the xAI API as of September 24, 2026

Input $0.002 per input image; text prompt pricing is not separately stated
Output $0.02 per generated image for 1K and 2K resolution
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High-quality text-to-image generation, image editing, multi-reference compositing, marketing graphics, product imagery, typography, and design assets

Type Multimodal
Multimodal Image input Media output
Status

Generally available

Input $0.01 per input image
Output $0.04-$0.08 per generated image, depending on resolution and quality
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Grok Imagine Image

Grok Imagine Image Quality

High-quality image generation and editing, realistic product and marketing imagery, detailed scenes, creative assets, and images requiring stronger text rendering or prompt adherence.

Type Multimodal
Reasoning 1/10
Speed 7/10
Multimodal Image input Media output
Status

Currently available; scheduled for API retirement on November 2, 2026. After retirement, requests using the slug are served by Grok Imagine Image 2.0 with quality set to low.

Input $0.01 per input image
Output $0.05 per 1K image; $0.07 per 2K image
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Grok Imagine Video

Grok Imagine Video 1.5

Short-form text-to-video, image-to-video, reference-guided video, cinematic prototyping, marketing clips, and audiovisual creative workflows

Type Other
Speed 8/10
Multimodal Image input Audio input
Status

Generally available

Input $0.01 per image; preset audio input is free
Output $0.08/sec at 480p; $0.14/sec at 720p; $0.25/sec at 1080p
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Grok Imagine Video 1.5

Grok Imagine Video 1.5 Lite

Low-cost text-to-video and image-to-video drafts, social clips, rapid creative iteration, and high-volume generation

Type Lightweight
Reasoning 0/10
Speed 8/10
Multimodal Image input Media output
Status

Current and available through the xAI Imagine API

Input $0.01 per image input; video input is charged per second where applicable
Output $0.02 per second at 480p; $0.03 per second at 720p; $0.14 per second at 1080p
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Grok TTS

grok-tts

Expressive speech synthesis, voice agents, narration, podcasts, audiobooks, accessibility, and interactive audio applications

Type Other
Reasoning 1/10
Speed 8/10
Media output Streaming
Status

Current

Input $15.00 per 1 million input characters
Output Included in character-based pricing; no separate output charge documented
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Grok Voice Think Fast

Grok Voice Think Fast 2.0

Realtime voice agents, customer support, telephony, sales, multilingual conversations, and tool-enabled spoken workflows

Type Multimodal
Reasoning 8/10
Speed 9/10
Multimodal Audio input Media output
Status

Current and available through the xAI Speech to Speech API

Input $0.08 per minute of audio; $0.004 per text input
Output $0.08 per minute of audio
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Grok Voice Transcribe

Grok Voice Transcribe 1.0

Batch and real-time multilingual speech transcription, dictation, voice assistants, accessibility, meetings, and customer-support audio

Type Speech Recognition
Speed 8/10
Audio input Streaming
Status

Currently accessible; original speech-to-text model; scheduled for deprecation in the coming weeks

Input $0.10 per hour of audio for REST batch transcription; $0.20 per hour of audio for streaming
Output Included in the transcription service price; output is text transcript data
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Grok Voice Transcribe

Grok Voice Transcribe 2.0

Batch and real-time transcription of multilingual, noisy, conversational, telephony, and voice-agent audio

Type Other
Reasoning 0/10
Speed 9/10
Audio input Streaming
Status

Current

Input $0.10 per hour of audio for batch REST transcription; $0.20 per hour of audio for streaming transcription
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