Anthropic: Claude Sonnet 4.6 vs OpenAI: GPT-5.4
Side-by-side comparison of Anthropic: Claude Sonnet 4.6 and OpenAI: GPT-5.4. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
marginal confidenceAnthropic: Claude Sonnet 4.6 and OpenAI: GPT-5.4 are closely matched across pricing, context, and capabilities. Your choice depends on workflow-specific factors like provider ecosystem preference and existing integrations.
Side-by-side
Technical specifications
| Anthropic: Claude Sonnet 4.6 | OpenAI: GPT-5.4 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input price | $3/M | $3/M |
| Output price | $15/M | $15/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
$15/M tokens
OpenAI: GPT-5.4
$15/M tokens
Context Window
Anthropic: Claude Sonnet 4.6
1.0M tokens
OpenAI: GPT-5.4
1.1M tokens
Capabilities
Anthropic: Claude Sonnet 4.6
3/4
OpenAI: GPT-5.4
3/4
Max Output
Anthropic: Claude Sonnet 4.6
128K tokens
OpenAI: GPT-5.4
128K tokens
Recency
Anthropic: Claude Sonnet 4.6
Feb 2026
OpenAI: GPT-5.4
Mar 2026
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