# Grok 4.6 Ties Claude Opus 5 for Top on Agentic Index

> Independent evaluation places the xAI model alongside Anthropic's Claude Opus 5 at the leading score for real-world agentic tasks including tool use and autonomous problem-solving.

*Published 2026-08-25 · By Marcus Vance*

Grok 4.6 is an advanced language model from xAI that ties for the highest score on the Artificial Analysis Agentic Index.

The tie at the top position underscores parity between leading frontier models in practical agentic performance.

## What is the Artificial Analysis Agentic Index?

The Artificial Analysis Agentic Index measures performance in agentic workflows.

The index focuses on tool use, planning, autonomy, and complex problem solving.

These metrics reflect capabilities that matter for real-world AI agents.

## How does Grok 4.6 perform relative to Claude Opus 5?

Grok 4.6 high variant achieves a score of 59.

Claude Opus 5 max variant achieves a score of 59.

GLM-5.3 max variant also achieves a score of 59.

## What other benchmarks does Grok 4.6 lead or match on?

Grok 4.6 high scores 61 on the Artificial Analysis Intelligence Index.

Grok 4.6 achieves frontier intelligence across several agentic coding and knowledge work benchmarks.

Grok 4.6 matches GPT-5.6 Sol on the Artificial Analysis Intelligence Index.

Comparison of top models on the Agentic Index from Artificial AnalysisModelAgentic Index ScoreIntelligence Index ScoreGrok 4.6 (high)5961Claude Opus 5 (max)59N/AGLM-5.3 (max)59N/A

## What are the implications for the AI industry?

The results indicate that multiple frontier models have reached similar levels in agentic tasks.

The tie between Grok 4.6 and Claude Opus 5 highlights parity in real-world agentic capabilities.

Stakeholders in AI development can expect increased competition in agentic capabilities.

Users may benefit from more options for autonomous problem-solving tools.

Companies developing AI agents will look to these scores when selecting models for deployment.

## What do experts and observers say about the benchmark results?

> BREAKING: Grok 4.6 just tied for #1 on the Artificial Analysis Agentic Index.⚡🤖 • Grok 4.6 (High) — 59 • Claude Opus 5 (Max) — 59 Grok 4.6 is now at the top of the benchmark, ahead of other leading models. The Agentic Index focuses on capabilities that matter for real-world AI agents — tool use, planning, autonomy, and complex problem-solving.Tesla Owners Silicon Valley, X account (@teslaownersSV)

This announcement underscores the competitive landscape among leading AI developers.

## What comes next for Grok 4.6 and similar models?

Further advancements in agentic coding and knowledge work benchmarks are expected.

- xAI continues to develop frontier intelligence in agentic tasks.
- Anthropic maintains its position with Claude Opus 5.
- Developers should evaluate models based on specific workflow needs.
- Competition in this area is expected to intensify.

The field of frontier models will see ongoing evaluations on agentic performance.

## How does this result position xAI in the frontier models space?

xAI has positioned Grok 4.6 as a competitive option in the frontier models category.

The model matches other leaders in key agentic benchmarks.

## Sources

1. [Claude Opus 5 (max) ... GLM-5.3 (max) ... Grok 4.6 (high) ... (59). ... Claude Opus 5 (Adaptive Reasoning, Max Effort) currently has the highest Agentic Index score, with a score of 59 among models with published results.](https://artificialanalysis.ai/models/capabilities/agentic)
2. [Grok 4.6 achieves frontier intelligence across several agentic coding and knowledge work benchmarks. It matches GPT-5.6 Sol on the Artificial Analysis Intelligence Index...](https://x.ai/news/grok-4-6)
3. [Grok 4.6 (high) scores 61 on the Artificial Analysis Intelligence Index...](https://artificialanalysis.ai/models/grok-4-6)
4. [Grok 4.6 ties for the top spot on the Agentic Index with a score of 59.](https://x.com/teslaownersSV/status/2090492800777503090)

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Source: https://aiintelreport.com/frontier-models/grok-4-6-ties-claude-opus-5-agentic-index
Index: https://aiintelreport.com/llms.txt · Full text: https://aiintelreport.com/llms-full.txt