Llama 3.1 405B vs Sonar Deep Research
At a Glance
| Compare |  Llama 3.1 405BMeta |  Sonar Deep ResearchPerplexity |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $2.00Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $8.00Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 131K | 128K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Llama-3.1-405B | Sonar Deep Research |
|---|---|---|
| Developer | Meta | Perplexity |
| Family | Llama 3 1 405b | Sonar |
| Model | Llama-3.1-405B | Sonar Deep Research |
| Version | Llama-3.1-405B | Sonar Deep Research |
| Lifecycle | active | active |
| Released | 2024-07-23 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 131K | 128K |
| Total parameters | 405.9B | Unknown |
| Active parameters | Unknown | Unknown |
| License | llama3.1 | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Together Ai (Standard) | Openrouter (Standard), Perplexity (Standard) |
| Capabilities | generation | chat, citations, reasoning, research, search |
Llama 3.1 405B Capabilities
Sonar Deep Research Capabilities
Related Comparisons
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|---|---|---|---|
Llama-3.1-405BMeta | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Llama-3.1-405BMeta | cross-developer peerstext |
 Gemini 3.1 ProGoogle DeepMind | vs | Llama-3.1-405BMeta | cross-developer peerstext |
 DeepSeek-V4.1-FlashDeepSeek | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs | Grok 4.6xAI | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Llama 3.1 405B vs Sonar Deep Research FAQs
Is Llama 3.1 405B or Sonar Deep Research better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Llama 3.1 405B and Sonar Deep Research, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Llama 3.1 405B or Sonar Deep Research?+
Only Sonar Deep Research has a directly sourced input price: $2.00 per million tokens. Only Sonar Deep Research has a directly sourced output price: $8.00 per million tokens.
Which has a larger context window, Llama 3.1 405B or Sonar Deep Research?+
Llama 3.1 405B has the larger sourced context window. Llama 3.1 405B supports 131K and Sonar Deep Research supports 128K.
Which performs better in benchmarks, Llama 3.1 405B or Sonar Deep Research?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Llama 3.1 405B or Sonar Deep Research be self-hosted?+
Llama 3.1 405B is the only model in this pair currently marked as self-hostable. Llama 3.1 405B is open weight; Sonar Deep Research is not marked open weight.
Can Llama 3.1 405B and Sonar Deep Research understand images?+
Llama 3.1 405B is not documented with image input; Sonar Deep Research is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Llama 3.1 405B or Sonar Deep Research?+
Neither has a larger sourced maximum output. Llama 3.1 405B is — and Sonar Deep Research is —.
Do Llama 3.1 405B and Sonar Deep Research support reasoning and tool use?+
Llama 3.1 405B: none of these features are definitively sourced. Sonar Deep Research: reasoning. Feature support does not establish relative quality.
Which is available from more inference providers, Llama 3.1 405B or Sonar Deep Research?+
Llama 3.1 405B has 1 sourced provider route; Sonar Deep Research has 2, so Sonar Deep Research has broader tracked availability.
Which offers better value, Llama 3.1 405B or Sonar Deep Research?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.