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Claude Opus 5 vs Grok Build 0.1

At a glance

Anthropic's flagship for demanding reasoning, coding, and long-horizon agentic work.

1M ctx$5.00/$25.00 per M

xAI's agentic build model for autonomous software engineering.

256K ctx$1.00/$2.00 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Coding
Real-World Coding—
Reasoning
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-06-15
Cheaper88%
Coding
Real-World Coding70.8%
Specs
1M
Context
128K
Max output
Jul 2026
Released
256K
Context
16K
Max output
May 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$5.00/M tokens
Output$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input80%$1.00/M tokens
Output92%$2.00/M tokens
Cache read60%$0.20/M tokens
Web search50%$0.005/search
Chat with Claude Opus 5Go to model
Chat with Grok Build 0.1Go to model
Frequently Asked Questions: Claude Opus 5 vs Grok Build 0.1▼

Which is better, Claude Opus 5 or Grok Build 0.1?

▼

Both Claude Opus 5 and Grok Build 0.1 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Claude Opus 5 or Grok Build 0.1?

▼

Grok Build 0.1 has a lower blended cost. Claude Opus 5: $5.00 input / $25.00 output. Grok Build 0.1: $1.00 input / $2.00 output.

Which has a larger context window, Claude Opus 5 or Grok Build 0.1?

▼

Claude Opus 5 has a larger context window: Claude Opus 5 supports 1M tokens vs Grok Build 0.1 at 256K tokens.

Do both Claude Opus 5 and Grok Build 0.1 support vision?

▼

Yes, both Claude Opus 5 and Grok Build 0.1 support vision/image input.

What are the key differences between Claude Opus 5 and Grok Build 0.1?

▼

Key differences: Grok Build 0.1 is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 5 and Grok Build 0.1 for free on idapt.app to see which performs better for your specific needs.

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