GPT-5 vs Grok-4

Compare
OpenAI: GPT-5
and
xAI: Grok 4
on reasoning, speed, cost, and features.
Models
COntext size
Cutoff date
I/O cost *
Max output
Latency
Speed
OpenAI: GPT-5
400000
2024-09
₳7.5/₳60
N/A
N/A
N/A
xAI: Grok 4
256000
2024-11
₳18/₳90
N/A
N/A
N/A
*₳ = ₳nyTokens

Standard Benchmarks

OpenAI: GPT-5
xAI: Grok 4
MMLU
GSM8K
HumanEval

GPT-5 and Grok 4 represent the latest generation of frontier AI models, each with distinct strengths. GPT-5 demonstrates superior performance on complex reasoning benchmarks, particularly excelling in mathematical problem-solving, code generation, and multi-step logical tasks. Its context window handles extensive documents efficiently, making it ideal for comprehensive analysis work. However, this performance comes at a premium price point. Grok 4 takes a different approach, prioritizing speed and real-time capabilities while maintaining competitive accuracy across most tasks. It processes requests notably faster than GPT-5, making it excellent for applications requiring quick responses. Grok 4's strength lies in its ability to handle current events and real-time information processing, thanks to its integration with live data sources. Cost-wise, Grok 4 offers more accessible pricing for high-volume applications. Both models support multimodal inputs including text, images, and code, but GPT-5 shows slightly better performance in complex visual reasoning tasks. For developers choosing between them, consider whether you need GPT-5's superior reasoning capabilities for complex tasks or Grok 4's speed and real-time awareness for dynamic applications.

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Intelligence Score

OpenAI: GPT-5
xAI: Grok 4
88
89

When to choose OpenAI: GPT-5

Choose GPT-5 for complex reasoning tasks, advanced mathematics, sophisticated code generation, academic research, and detailed document analysis. Ideal when accuracy and deep logical thinking matter more than response speed or cost considerations.

When to choose xAI: Grok 4

Select Grok 4 for real-time applications, current events analysis, high-volume processing, chatbots requiring quick responses, and cost-sensitive projects. Perfect when speed and up-to-date information access are prioritized over maximum reasoning depth.

Speed & Latency

Real-world performance metrics measuring response time, throughput, and stability under load.

metric
OpenAI: GPT-5
xAI: Grok 4
Average latency
N/A
ms
N/A
ms
Tokens/Second
N/A
N/A
Response Stability
N/A
N/A
Verdict:
Grok 4 delivers faster response times; GPT-5 prioritizes accuracy over speed

Cost Efficiency

Price per token for input and output, affecting total cost of ownership for different use cases.

Pricing
OpenAI: GPT-5
xAI: Grok 4
Input ₳nyTokens
₳7.5
₳60
Output ₳nyTokens
₳18
₳90
Verdict:
GPT-5 offers premium performance; Grok 4 provides competitive value proposition

Integration & API Ecosystem

Developer tooling, SDK availability, and integration capabilities for production deployments.

Feature
OpenAI: GPT-5
xAI: Grok 4
REST API
Official SDKs
Function Calling
Streaming Support
Multimodal Input
Open Weights
Verdict:
GPT-5 offers premium performance; Grok 4 provides competitive value proposition

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Grok 4 vs Grok 3

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FAQs

Which model is more accurate overall?

GPT-5 generally shows higher accuracy, particularly on complex reasoning benchmarks and mathematical tasks, though Grok 4 performs competitively on most standard tasks while offering faster processing speeds.

How do the costs compare?

GPT-5 operates at a premium pricing tier reflecting its advanced capabilities, while Grok 4 offers more cost-effective pricing, making it better suited for high-volume applications and budget-conscious projects.

Which model is faster?

Grok 4 delivers notably faster response times and lower latency, making it ideal for real-time applications, while GPT-5 prioritizes accuracy and reasoning depth over processing speed.

Do both models support multimodal inputs?

Yes, both GPT-5 and Grok 4 support multimodal inputs including text, images, and code. GPT-5 shows slightly better performance in complex visual reasoning, while Grok 4 processes multimodal inputs more quickly.

Can I test both models in AnyAPI Playground?

Yes! Both models are available in the AnyApi Playground where you can run side-by-side comparisons with your own prompts.

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