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Grok 4.5

x-ai/grok-4.5
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Grok 4.5

x-ai/grok-4.5
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Grok 4.5 is SpaceXAI's frontier reasoning model for coding, knowledge work, and STEM. It supports text, image, and file inputs with tool calling and structured outputs. Reasoning is always active. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Added Jul 8, 2026

Context Window

500.0K

Max Output

500.0K

Avg output tokens (7d)

1.0K tokens

73%

Input Price (Auto)

$2.00/1M

Output Price (Auto)

$6.00/1M

Cache Read (Auto)

$0.30/1M

Capabilities

Benchmarks

Performance metrics and benchmarks

Sourced from Artificial Analysis.

Intelligence Index

38.8

Better than 89% of models compared

Coding Index

72.4

Better than 88% of models compared

Agentic Index

41.2

Better than 82% of models compared

Agentic work

AutomationBench-AA

Workflow automation with guardrail penalties

57.9%

Better than 82% of models compared

Harvey LAB-AA

Legal agentic work criterion pass rate

92.4%

Better than 77% of models compared

AA-Briefcase

Agentic knowledge work (Elo)

1283 Elo

Better than 70% of models compared

GDPval-AA v2

Economically valuable tasks (Elo)

1370 Elo

Better than 75% of models compared

Document reasoning

GDP.pdf

Professional PDF reasoning: all-pass rate

18.8%

Better than 67% of models compared

AA-LCR v1.1

Long context reasoning with updated grading

79.3%

Better than 84% of models compared

MLCR-AA

Medical long-context reasoning

15.0%

Better than 47% of models compared

Reasoning

HLE

Humanity's Last Exam

42.7%

Better than 91% of models compared

CritPt

Research-level physics reasoning

15.4%

Coding

Terminal-Bench v4.0

Practical coding and terminal tasks

10.6%

Better than 63% of models compared

SciCode

Python programming for scientific computing

55.0%

Better than 77% of models compared

Knowledge

AA-Omniscience Accuracy

Proportion of correctly answered questions

51.5%

AA-Omniscience Hallucination Rate

Rate of incorrect answers among non-correct responses

54.1%

Legacy benchmarks

GPQA Diamond (legacy)

Graduate-level scientific reasoning

93.1%

Better than 96% of models compared

AA-LCR (unversioned / legacy)

Long context reasoning evaluation

79.3%

Better than 84% of models compared

GDPval-AA (unversioned / legacy)

Economically valuable tasks

43.5%

Last updated Oct 2, 2026

Artificial Analysis

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Compare Grok 4.5 with similar models from the same provider or model family.

Grok 4.7

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Grok 4.7 is SpaceXAI's flagship reasoning model for coding, long-running agentic tasks, and knowledge work. It supports text, image, and file inputs with tool calling and structured outputs. Reasoning is always active, and requests above 200k input tokens use higher long-context rates. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Grok 4.6

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Grok 4.6 is SpaceXAI's frontier reasoning model for coding, knowledge work, and STEM. It supports text, image, and file inputs with tool calling and structured outputs. Reasoning is always active, and requests above 200k input tokens use higher long-context rates. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Grok Build 0.1

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Grok Build 0.1 is SpaceXAI's fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding agents, tool use, and multi-step development tasks. Currently in early access. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Grok Latest

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Compatibility alias that routes to the newest Grok model. Currently routes to Grok 4.6. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Grok 4.3

x-ai/grok-4.3

Grok 4.3 is SpaceXAI's reasoning model for text and image inputs, built for agentic workflows, instruction following, factual accuracy, long-document analysis, and deep research. Reasoning is always active and requests above 200k total tokens are charged at the higher long-context rate. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

Grok 4.20

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SpaceXAI's Grok 4.20 flagship release with tool calling, multimodal input support, and a 2M-token context window. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.