Gemini 3.1 Pro vs Sonar Deep Research
At a Glance
| Compare |  Gemini 3.1 ProGoogle DeepMind |  Sonar Deep ResearchPerplexity |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #9 of 4679.7 score · 3/3 sources · complete | UnrankedNot in the 46-model eligible cohort |
| CostLower is better · Published-token output estimate | #27 of 44$0.161 per LiveBench case | UnrankedNot in the 44-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.5 | #9 of 3859.2 score · 3/3 sources · complete | UnrankedNot in the 38-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $2.00Google AI ↗ · Aug 29, 2026 | $2.00Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | $12.00Google AI ↗ · Aug 29, 2026 | $8.00Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 1,049K | 128K |
| Model facts checked | Aug 29, 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 | Gemini 3.1 Pro | Sonar Deep Research |
|---|---|---|
| Developer | Google DeepMind | Perplexity |
| Family | Gemini 3 | Sonar |
| Model | Gemini 3.1 Pro | Sonar Deep Research |
| Version | Gemini 3.1 Pro | Sonar Deep Research |
| Lifecycle | preview | active |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image, Video, Audio, Document | Text |
| Output modalities | Text | Text |
| Context window | 1,049K | 128K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Google AI (Standard), Google Gemini (Standard) | Openrouter (Standard), Perplexity (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, citations, reasoning, research, search |
Gemini 3.1 Pro Capabilities
Sonar Deep Research Capabilities
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Primary Evidence
Sources and Freshness
Questions
Gemini 3.1 Pro vs Sonar Deep Research FAQs
Is Gemini 3.1 Pro or Sonar Deep Research better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 3.1 Pro and Sonar Deep Research, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 3.1 Pro or Sonar Deep Research?+
Gemini 3.1 Pro is $2.00 and Sonar Deep Research is $2.00 per million tokens, so they are tied on this metric. Gemini 3.1 Pro is $12.00 and Sonar Deep Research is $8.00 per million tokens, so Sonar Deep Research is cheaper on this metric.
Which has a larger context window, Gemini 3.1 Pro or Sonar Deep Research?+
Gemini 3.1 Pro has the larger sourced context window. Gemini 3.1 Pro supports 1,049K and Sonar Deep Research supports 128K.
Which performs better in benchmarks, Gemini 3.1 Pro 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 Gemini 3.1 Pro or Sonar Deep Research be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Gemini 3.1 Pro is not marked open weight; Sonar Deep Research is not marked open weight.
Can Gemini 3.1 Pro and Sonar Deep Research understand images?+
Gemini 3.1 Pro is 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, Gemini 3.1 Pro or Sonar Deep Research?+
Neither has a larger sourced maximum output. Gemini 3.1 Pro is 66K and Sonar Deep Research is —.
Do Gemini 3.1 Pro and Sonar Deep Research support reasoning and tool use?+
Gemini 3.1 Pro: reasoning, tool calling, and image input. Sonar Deep Research: reasoning. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 3.1 Pro or Sonar Deep Research?+
Gemini 3.1 Pro has 2 sourced provider routes; Sonar Deep Research has 2, a tie.
Which offers better value, Gemini 3.1 Pro 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.