Anthropic: Claude Sonnet 4.6 vs OpenAI: GPT-5.4 Pro
Side-by-side comparison of Anthropic: Claude Sonnet 4.6 and OpenAI: GPT-5.4 Pro. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
moderate confidenceOpenAI: GPT-5.4 Pro leads overall
OpenAI: GPT-5.4 Pro has a meaningful edge overall, but Anthropic: Claude Sonnet 4.6 is stronger in specific areas. Your use case determines the right pick.
Best for with Anthropic: Claude Sonnet 4.6
Best for with OpenAI: GPT-5.4 Pro
Side-by-side
Technical specifications
| Anthropic: Claude Sonnet 4.6 | OpenAI: GPT-5.4 Pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input price | $3/M | $30/M |
| Output price | $15/M | $180/M |
| Context window | 1.0M | 1.1M |
| Max output | 128K | 128K |
| Capabilities | Tool useVisionReasoning | Tool useVisionReasoning |
| Released | Feb 17, 2026 | Mar 5, 2026 |
Scoring breakdown
How each dimension compares
Price
Anthropic: Claude Sonnet 4.6 leadsAnthropic: Claude Sonnet 4.6
$3/M in / $15/M out
OpenAI: GPT-5.4 Pro
$30/M in / $180/M out
Context Window
OpenAI: GPT-5.4 Pro leadsAnthropic: Claude Sonnet 4.6
1.0M
OpenAI: GPT-5.4 Pro
1.1M
Capabilities
Anthropic: Claude Sonnet 4.6
3/4 features
OpenAI: GPT-5.4 Pro
3/4 features
Max Output
Anthropic: Claude Sonnet 4.6
128K
OpenAI: GPT-5.4 Pro
128K
Release Date
OpenAI: GPT-5.4 Pro leadsAnthropic: Claude Sonnet 4.6
Feb 17, 2026
OpenAI: GPT-5.4 Pro
Mar 5, 2026
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