LLM Comparison
Kimi K3 vs Sonar Deep Research
Side-by-side specs, pricing & capabilities · Updated August 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 73 8.1 | 21 4.3 |
| Family | Kimi | Sonar |
| Status | Current | Current |
| Release Date | — | Mar 2025 |
| Context Window | 1.0M tokens | 128K tokens |
| Input Price | $3.00/M tokens | $2.00/M tokens |
| Output Price | $15.00/M tokens | $8.00/M tokens |
| Pricing Notes | Official Kimi pricing lists kimi-k3 at $3.00 per 1M cache-miss input tokens, $0.30 per 1M cache-hit input tokens, and $15.00 per 1M output tokens. Official troubleshooting docs say max_completion_tokens defaults to 131,072 and maximum output length is 1024*1024 minus prompt tokens. | — |
| Capabilities | textvisionreasoningcodingtool-usestructured-outputjson-modelong-contextagentic | textcode |
| Max Output | 131K tokens | — |
| API Identifier | kimi-k3 | perplexity/sonar-deep-research |
| Benchmarks | ||
| Artificial Analysis Intelligence Index | 57artificial-analysis | — |
| AA-Briefcase | 1543artificial-analysis | — |
| AA-Briefcase Rubric Pass Rate | 51artificial-analysis | — |
| GPQA Diamond | — | 47.1perplexity |
| MMLU Pro | — | 68.9perplexity |
| MATH-500 | — | 81.7perplexity |
| AIME | — | 48.7perplexity |
| View Kimi K3 | View Sonar Deep Research | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Sonar Deep ResearchCheapest | $2.00 | $4.00 | $6.00 | — |
| Kimi K3 | $3.00 | $7.50 | $10.50 | +75% |
Moonshot AI
Kimi K3
Kimi K3 is Moonshot AI open-weight 2.8T-parameter flagship model for long-horizon coding, end-to-end knowledge work, reasoning, and native multimodal understanding. Official Kimi documentation lists the API model ID kimi-k3, a 1M-token context window, automatic context caching, tool calls, JSON mode, structured outputs, and always-on reasoning effort controls.
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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