Anthropic: Claude Opus 4.6 vs OpenAI: GPT-5.4
Side-by-side comparison of Anthropic: Claude Opus 4.6 and OpenAI: GPT-5.4. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
marginal confidenceOpenAI: GPT-5.4 leads overall
The gap between these models is narrow. OpenAI: GPT-5.4 edges ahead slightly, but either is a solid choice depending on your priorities.
Best for with Anthropic: Claude Opus 4.6
Best for with OpenAI: GPT-5.4
Side-by-side
Technical specifications
| Anthropic: Claude Opus 4.6 | OpenAI: GPT-5.4 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input price | $5/M | $3/M |
| Output price | $25/M | $15/M |
| Context window | 1.0M | 1.1M |
| Max output | 128K | 128K |
| Capabilities | Tool useVisionReasoning | Tool useVisionReasoning |
| Released | Feb 4, 2026 | Mar 5, 2026 |
Scoring breakdown
How each dimension compares
Price
OpenAI: GPT-5.4 leadsAnthropic: Claude Opus 4.6
$5/M in / $25/M out
OpenAI: GPT-5.4
$3/M in / $15/M out
Context Window
OpenAI: GPT-5.4 leadsAnthropic: Claude Opus 4.6
1.0M
OpenAI: GPT-5.4
1.1M
Capabilities
Anthropic: Claude Opus 4.6
3/4 features
OpenAI: GPT-5.4
3/4 features
Max Output
Anthropic: Claude Opus 4.6
128K
OpenAI: GPT-5.4
128K
Release Date
OpenAI: GPT-5.4 leadsAnthropic: Claude Opus 4.6
Feb 4, 2026
OpenAI: GPT-5.4
Mar 5, 2026
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