LLM Comparison
Sonar Pro Search vs GPT-5.4 Nano
Side-by-side specs, pricing & capabilities · Updated May 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 22 2.4 | |
| Family | Sonar | GPT |
| Status | Current | Current |
| Release Date | Oct 2025 | Mar 2026 |
| Context Window | 200K tokens | 400K tokens |
| Input Price | $3.00/M tokens | $0.20/M tokens |
| Output Price | $15.00/M tokens | $1.25/M tokens |
| Pricing Notes | — | Cache read: $0.0200/M tokens |
| Capabilities | textvisioncode | textvisioncode |
| Max Output | 8K tokens | 128K tokens |
| API Identifier | perplexity/sonar-pro-search | openai/gpt-5.4-nano |
| Benchmarks | ||
| GPQA Diamond | 47.1perplexity | — |
| MMLU Pro | 68.9perplexity | — |
| MATH-500 | 81.7perplexity | — |
| AIME | 48.7perplexity | — |
| View Sonar Pro Search | View GPT-5.4 Nano | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-5.4 NanoCheapest | $0.20 | $0.63 | $0.83 | — |
| Sonar Pro Search | $3.00 | $7.50 | $10.50 | +1173% |
Perplexity AI
Sonar Pro Search
Sonar Pro Search is a multimodal llm from Perplexity AI. Supports up to 200,000 token context window. Achieves 83.0% on MMLU. Available from $3.00/M input tokens.
OpenAI
GPT-5.4 Nano
GPT-5.4 Nano is a multimodal llm from OpenAI. Supports up to 400,000 token context window. Available from $0.20/M input tokens.
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