LLM Comparison
Palmyra X5 vs Sonar Deep Research
Side-by-side specs, pricing & capabilities · Updated October 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 25 5.1 | |
| Family | Palmyra | Sonar |
| Status | Current | Current |
| Release Date | Jan 2026 | Mar 2025 |
| Context Window | 1.0M tokens | 128K tokens |
| Input Price | $0.60/M tokens | $2.00/M tokens |
| Output Price | $6.00/M tokens | $8.00/M tokens |
| Pricing Notes | Writer direct API Palmyra X5: $0.60 input and $6.00 output per million tokens. Writer Agent bills X5 at $5.00 input and $12.00 output per million; Amazon Bedrock pricing is separate. | — |
| Capabilities | textcode | textcode |
| Max Output | 8K tokens | — |
| API Identifier | writer/palmyra-x5 | perplexity/sonar-deep-research |
| Benchmarks | ||
| GPQA Diamond | — | 47.1perplexity |
| MMLU Pro | — | 68.9perplexity |
| MATH-500 | — | 81.7perplexity |
| AIME | — | 48.7perplexity |
| View Palmyra X5 | View Sonar Deep Research | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Palmyra X5Cheapest | $0.60 | $3.00 | $3.60 | — |
| Sonar Deep Research | $2.00 | $4.00 | $6.00 | +67% |
Writer
Palmyra X5
Palmyra X5 is Writer's general-purpose AI model with a 1-million-token context window and an 8,192-token output limit. Writer lists direct API pricing of $0.60 input and $6.00 output per million tokens; X5 is scheduled for deprecation on December 14, 2026.
Perplexity AI
Sonar Deep Research
Sonar Deep Research is a large language model from Perplexity AI. Supports up to 128,000 token context window. Achieves 83.0% on MMLU. Available from $2.00/M input tokens.
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