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Grok Build 0.1 vs o3

At a glance
xAIGrok Build 0.1

xAI's agentic build model for autonomous software engineering.

256K ctx$1.00/$2.00 per M
OpenAIo3

OpenAI's most powerful reasoning model — top across math, coding, and science.

79200K ctx$2.00/$8.00 per M#27/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
xAIGrok Build 0.1
Reasoning
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-06-15
Cheaper
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level—Factual Recall—
Math
Math Problems—Competition Math—Research Math—
Coding
Real-World Coding70.8%Code Editing—
Agentic
Novel Reasoning—Task Horizon—
OpenAIo3
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI79.2
Reasoning & Knowledge
Graduate Science81.8%Expert-Level20.3%Factual Recall53.0%
Math
Math Problems97.8%Competition Math83.9%Research Math18.7%
Coding
Real-World Coding62.3%Code Editing81.3%
Agentic
Novel Reasoning6.5%Task Horizon1.5h
Specs
xAIGrok Build 0.1
256K
Context
16K
Max output
May 2026
Released
OpenAIo3
200K
Context
100K
Max output
Apr 2025
Released
Capabilities
xAIGrok Build 0.1
Vision
Audio
Reasoning
OpenAIo3
Vision
Audio
Reasoning
Pricing
xAIGrok Build 0.1
Live pricing, shown before you run
Input$1.00/M tokens
Output$2.00/M tokens
Cache read$0.20/M tokens
Web search$0.005/search
OpenAIo3
Live pricing, shown before you run
Input$2.00/M tokens
Output$8.00/M tokens
Cache read$0.50/M tokens
Web search$0.01/search
Chat with Grok Build 0.1Go to model
Chat with o3Go to model
Frequently Asked Questions: Grok Build 0.1 vs o3▼

Which is better, Grok Build 0.1 or o3?

▼

Both Grok Build 0.1 and o3 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, Grok Build 0.1 or o3?

▼

Grok Build 0.1 has a lower blended cost. Grok Build 0.1: $1.00 input / $2.00 output. o3: $2.00 input / $8.00 output.

Which has a larger context window, Grok Build 0.1 or o3?

▼

Grok Build 0.1 has a larger context window: Grok Build 0.1 supports 256K tokens vs o3 at 200K tokens.

Do both Grok Build 0.1 and o3 support vision?

▼

Yes, both Grok Build 0.1 and o3 support vision/image input.

Which has better coding performance, Grok Build 0.1 or o3?

▼

Grok Build 0.1 scores higher on SWE-bench Verified: Grok Build 0.1 resolves 71% vs o3 at 62%.

What are the key differences between Grok Build 0.1 and o3?

▼

Grok Build 0.1 and o3 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

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 Grok Build 0.1 and o3 for free on idapt.app to see which performs better for your specific needs.

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