Sonar Reasoning Pro vs Grok Build 0.1
At a Glance
| Compare |  Sonar Reasoning ProPerplexity | |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| CostLower is better · Published-token output estimate | UnrankedNot in the 44-model eligible cohort | #1 of 44$0.0020 per LiveBench case |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $2.00Openrouter ↗ · Sep 22, 2026 | $1.00Xai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $8.00Openrouter ↗ · Sep 22, 2026 | $2.00Xai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 128K | 256K |
| Model facts checked | Aug 29, 2026View model evidence → | Sep 3, 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 | Sonar Reasoning Pro | Grok Build 0.1 |
|---|---|---|
| Developer | Perplexity | xAI |
| Family | Sonar | Grok Build |
| Model | Sonar Reasoning Pro | Grok Build 0.1 |
| Version | Sonar Reasoning Pro | Grok Build 0.1 |
| Lifecycle | active | preview |
| Released | Unknown | 2026-05-29 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
| Context window | 128K | 256K |
| 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 | Openrouter (Standard), Perplexity (Standard) | Xai (Standard) |
| Capabilities | chat, citations, reasoning, search | chat, generation, reasoning, structured_outputs, tools |
Sonar Reasoning Pro Capabilities
Grok Build 0.1 Capabilities
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Primary Evidence
Sources and Freshness
Questions
Sonar Reasoning Pro vs Grok Build 0.1 FAQs
Is Sonar Reasoning Pro or Grok Build 0.1 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Sonar Reasoning Pro and Grok Build 0.1, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Sonar Reasoning Pro or Grok Build 0.1?+
Sonar Reasoning Pro is $2.00 and Grok Build 0.1 is $1.00 per million tokens, so Grok Build 0.1 is cheaper on this metric. Sonar Reasoning Pro is $8.00 and Grok Build 0.1 is $2.00 per million tokens, so Grok Build 0.1 is cheaper on this metric.
Which has a larger context window, Sonar Reasoning Pro or Grok Build 0.1?+
Grok Build 0.1 has the larger sourced context window. Sonar Reasoning Pro supports 128K and Grok Build 0.1 supports 256K.
Which performs better in benchmarks, Sonar Reasoning Pro or Grok Build 0.1?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Sonar Reasoning Pro or Grok Build 0.1 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Sonar Reasoning Pro is not marked open weight; Grok Build 0.1 is not marked open weight.
Can Sonar Reasoning Pro and Grok Build 0.1 understand images?+
Sonar Reasoning Pro is not documented with image input; Grok Build 0.1 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Sonar Reasoning Pro or Grok Build 0.1?+
Neither has a larger sourced maximum output. Sonar Reasoning Pro is — and Grok Build 0.1 is —.
Do Sonar Reasoning Pro and Grok Build 0.1 support reasoning and tool use?+
Sonar Reasoning Pro: reasoning. Grok Build 0.1: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Sonar Reasoning Pro or Grok Build 0.1?+
Sonar Reasoning Pro has 2 sourced provider routes; Grok Build 0.1 has 1, so Sonar Reasoning Pro has broader tracked availability.
Which offers better value, Sonar Reasoning Pro or Grok Build 0.1?+
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.