OpenAI: GPT-5 Chat vs xAI: Grok 4
Side-by-side comparison of OpenAI: GPT-5 Chat and xAI: Grok 4. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceOpenAI: GPT-5 Chat and xAI: Grok 4 are closely matched across pricing, context, and capabilities. Your choice depends on workflow-specific factors like provider ecosystem preference and existing integrations.
Best for with OpenAI: GPT-5 Chat
Best for with xAI: Grok 4
Side-by-side
Technical specifications
| OpenAI: GPT-5 Chat | xAI: Grok 4 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Input price | $1/M | $3/M |
| Output price | $10/M | $15/M |
| Context window | 128K | 256K |
| Max output | 16K | N/A |
| Capabilities | Vision | Tool useVisionReasoning |
| Released | Aug 7, 2025 | Jul 9, 2025 |
Scoring breakdown
How each dimension compares
Price
OpenAI: GPT-5 Chat leadsOpenAI: GPT-5 Chat
$10/M tokens
xAI: Grok 4
$15/M tokens
Context Window
xAI: Grok 4 leadsOpenAI: GPT-5 Chat
128K tokens
xAI: Grok 4
256K tokens
Capabilities
xAI: Grok 4 leadsOpenAI: GPT-5 Chat
1/4
xAI: Grok 4
3/4
Max Output
OpenAI: GPT-5 Chat leadsOpenAI: GPT-5 Chat
16K tokens
xAI: Grok 4
N/A
Recency
OpenAI: GPT-5 Chat
Aug 2025
xAI: Grok 4
Jul 2025
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