OpenAI: GPT-5.1 Chat vs OpenAI: GPT-5.4
Side-by-side comparison of OpenAI: GPT-5.1 Chat and OpenAI: GPT-5.4. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceOpenAI: GPT-5.4 leads overall
OpenAI: GPT-5.4 leads in context window and capabilities and max output, making it the stronger choice for most workflows. OpenAI: GPT-5.1 Chat remains competitive with advantages in price.
Best for with OpenAI: GPT-5.1 Chat
Best for with OpenAI: GPT-5.4
Side-by-side
Technical specifications
| OpenAI: GPT-5.1 Chat | OpenAI: GPT-5.4 | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input price | $1/M | $3/M |
| Output price | $10/M | $15/M |
| Context window | 128K | 1.1M |
| Max output | 16K | 128K |
| Capabilities | Tool useVision | Tool useVisionReasoning |
| Released | Nov 13, 2025 | Mar 5, 2026 |
Scoring breakdown
How each dimension compares
Price
OpenAI: GPT-5.1 Chat leadsOpenAI: GPT-5.1 Chat
$10/M tokens
OpenAI: GPT-5.4
$15/M tokens
Context Window
OpenAI: GPT-5.4 leadsOpenAI: GPT-5.1 Chat
128K tokens
OpenAI: GPT-5.4
1.1M tokens
Capabilities
OpenAI: GPT-5.4 leadsOpenAI: GPT-5.1 Chat
2/4
OpenAI: GPT-5.4
3/4
Max Output
OpenAI: GPT-5.4 leadsOpenAI: GPT-5.1 Chat
16K tokens
OpenAI: GPT-5.4
128K tokens
Recency
OpenAI: GPT-5.1 Chat
Nov 2025
OpenAI: GPT-5.4
Mar 2026
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