GPT-5 Chat vs Grok 4.20 Multi-Agent
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for GPT-5 Chat and Grok 4.20 Multi-Agent.
GPT-5 Chat
GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.
Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is a variant of xAI’s Grok 4.20 designed for collaborative, agent-based workflows. Multiple agents operate in parallel to conduct deep research, coordinate tool use, and synthesize information...
Technical Specifications
| Specification | GPT-5 Chat | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | OpenAI | xAI |
| Context Window | 128,000 tokens | 2,000,000 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | beta |
| API Available | Yes | Yes |
| Released Date | 2025-08-07 | 2026-03-31 |
API Pricing Comparison
Input Price per Million Tokens
GPT-5 Chat
$1.25
Grok 4.20 Multi-Agent
$1.25
Output Price per Million Tokens
GPT-5 Chat
$10.00
Grok 4.20 Multi-Agent
$2.50
Want to test both models live?
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
GPT-5 Chat Quirks & Gotchas
No developer gotchas reported.
Grok 4.20 Multi-Agent Quirks & Gotchas
No developer gotchas reported.