LLM Comparison
Claude Sonnet 4.6 vs GPT-5.4 Pro
Side-by-side specs, pricing & capabilities · Updated May 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 52 5.7 | 82 0.8 |
| Family | Claude | GPT |
| Status | Current | Current |
| Release Date | Feb 2026 | Mar 2026 |
| Context Window | 1.0M tokens | 1.1M tokens |
| Input Price | $3.00/M tokens | $30.00/M tokens |
| Output Price | $15.00/M tokens | $180.00/M tokens |
| Pricing Notes | Cache read: $0.3000/M tokens | — |
| Capabilities | textvisioncodetool-use | textvisioncode |
| Max Output | 128K tokens | 128K tokens |
| API Identifier | anthropic/claude-sonnet-4.6 | openai/gpt-5.4-pro |
| Benchmarks | ||
| MMLU | 86.7anthropic | — |
| GPQA Diamond | 89.9anthropic | 93openai |
| SWE-bench Verified | 72.5anthropic | — |
| Terminal-Bench 2.0 | 51anthropic | — |
| MATH 500 | 54.2anthropic | — |
| LiveCodeBench | 41.5anthropic | — |
| Berkeley Function Calling | 88.3anthropic | — |
| HLE | 30openrouter | — |
| GPQA-AA Elo | 1674artificial-analysis | — |
| SWE-bench Pro | — | 57.7openai |
| MATH-500 | — | 94.6openai |
| View Claude Sonnet 4.6 | View GPT-5.4 Pro | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Claude Sonnet 4.6Cheapest | $3.00 | $7.50 | $10.50 | — |
| GPT-5.4 Pro | $30.00 | $90.00 | $120.00 | +1043% |
Anthropic
Claude Sonnet 4.6
Claude Sonnet 4.6 is a multimodal llm from Anthropic. Supports up to 1,000,000 token context window. Achieves 88.0% on MMLU. Available from $3.00/M input tokens.
OpenAI
GPT-5.4 Pro
GPT-5.4 Pro is a multimodal llm from OpenAI. Supports up to 1,050,000 token context window. Available from $30.00/M input tokens.
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