Perplexity: Sonar Reasoning Pro vs Moondream: Moondream 3 Preview: Live Promos, Pricing, Hidden Fees & Latency
Perplexity: Sonar Reasoning Pro (perplexity/sonar-reasoning-pro) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Perplexity: Sonar Reasoning Pro: Activate ephemeral prefix caching to slash input costs by 50% (down to 1/1M) or route via asynchronous Batch API for 50% off standard token rates.
Moondream: Moondream 3 Preview (moondream/moondream3-preview) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Moondream: Moondream 3 Preview: Activate ephemeral prefix caching to slash input costs by 50% (down to 0.15/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Perplexity: Sonar Reasoning Pro (API ID: perplexity/sonar-reasoning-pro) vs Moondream: Moondream 3 Preview (API ID: moondream/moondream3-preview), Moondream: Moondream 3 Preview offers lower standard input pricing at $0.3/1M tokens ($2.5/1M output), while Moondream: Moondream 3 Preview leads in cached prefix economics at $0.15/1M tokens (50% discount). Perplexity: Sonar Reasoning Pro achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | Perplexity: Sonar Reasoning Pro | Moondream: Moondream 3 Preview | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | perplexity/sonar-reasoning-pro | moondream/moondream3-preview | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2 / $8 | $0.3 / $2.5 | Moondream: Moondream 3 Preview |
| Cache Read Price (per 1M) | $1/1M (50% Off) | $0.15/1M (50% Off) | Moondream: Moondream 3 Preview |
| Context Window / Max Output | 125K In / 113K Out | 31K In / 4K Out | Perplexity: Sonar Reasoning Pro |
| P90 First-Token / Edge Latency | 280ms | 280ms | Perplexity: Sonar Reasoning Pro (-0ms) |
Note: Sonar Pro pricing includes Perplexity search pricing. See [details here](https://docs.perplexity.ai/guides/pricing#detailed-pricing-breakdown-for-sonar-reasoning-pro-and-sona
Moondream 3 Preview is a vision-language model from Moondream with 9B total parameters and 2B active (mixture-of-experts). It handles visual question answering, captioning, OCR, an
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🛰️Switch from Perplexity: Sonar Reasoning Pro to Moondream: Moondream 3 Preview
Moondream 3 Preview is a vision-language model from Moondream with 9B total parameters and 2B active (mixture-of-experts). It handles visual question answering, captioning, OCR, an Verified P90 latency of 280ms.