Claude Sonnet 4.6 vs GPT-5.4 Pro: Specs & Benchmark Comparison
| Characteristic | Claude Sonnet 4.6 | GPT-5.4 Pro |
|---|---|---|
| Company | Anthropic | OpenAI |
| Release Date | February 17, 2026 | March 1, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 200K | 1.0M |
| Context (output) | 64K | 128K |
| Input Price / 1M | $3.00 | $15.00 |
| Output Price / 1M | $15.00 | $225.00 |
| Average Score | 0.7 | 0.0 |
Verdict
Both models show equal results — the choice depends on your specific use case.
API Cost
Claude Sonnet 4.6 is 13.3x cheaper: input $3.00/1M vs $15.00/1M tokens.
Context Window
GPT-5.4 Pro supports a larger context: 1M vs 200K tokens.
Recency
Both models were released around the same time: 2/17/2026 and 3/1/2026.
More About These Models
Related Comparisons
The Claude Sonnet 4.6 and GPT-5.4 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Sonnet 4.6 or GPT-5.4 Pro page. See also the complete list of AI model comparisons.