# Pearl cryptocurrency sparks GPU mining rush as RTX 5090 earnings halve

**Published:** 2026-05-31T12:40:00.000Z  
**Topic:** Bitcoin Hashrate  
**Sentiment:** bullish  
**Publisher:** TrendWatcher — https://www.trendwatcher.in/article/82b2a609-121f-4c83-85c5-65aa3ec773bf

New AI‑compute coin Pearl triggers a short‑lived GPU mining boom, but rising difficulty cuts RTX 5090 daily revenue from $33.80 to $17.19, according to

A new AI‑compute cryptocurrency called Pearl (ticker PRL) launched its mainnet in late April 2026 and immediately attracted a wave of GPU miners seeking to earn rewards by performing matrix‑multiplication work used in AI training [1]. Within weeks, profitability trackers reported that the daily revenue for an RTX 5090 fell from about $33.80 to $17.19 as network difficulty surged [1].

**Key takeaways**
- Pearl uses a Proof‑of‑Useful‑Work consensus that secures the chain with large‑scale matrix multiplication, not traditional hash functions [1].
- The coin’s mainnet debut and an exclusive partnership with AI cloud provider Together AI sparked a rapid influx of rented RTX 4090 and RTX 5090 instances on platforms such as RunPod and Vast.ai [1].
- Network difficulty rose sharply, cutting the RTX 5090’s estimated daily payout by roughly 49 % to $17.19, according to hashrate.no [1].
- Pearl’s block reward is programmed to decline over time, and the token trades only on low‑liquidity exchanges like SafeTrade and MEXC [1].
- The protocol is officially optimized for datacenter GPUs (H100/H200), but community miners have adapted it to consumer‑grade cards, limiting the risk of a broader GPU shortage [1].

## AI‑driven consensus fuels a mining surge

Pearl Research Labs designed the network’s consensus mechanism, dubbed Proof‑of‑Useful‑Work, to turn the computational work that secures the blockchain into useful AI matrix multiplication [1]. The model aligns with Together AI’s May 15 2026 announcement of a discounted inference endpoint for the Gemma‑4‑31B‑it‑pearl model, which is priced more than 25 % below standard rates and offset by future PRL emissions [1]. Although the protocol can extract mining proofs from genuine paid inference, most of the early mining activity runs on cloud‑rented GPUs that perform inference no one requests, meaning the output has no economic value [1].

Miners responded by launching RTX 4090 and RTX 5090 instances on cloud services such as RunPod and Vast.ai, directing them to public mining pools [1]. As these rented cards flooded the network, Pearl’s difficulty climbed steeply, slashing per‑card payouts. The hashrate.no tracker now estimates the RTX 5090’s daily revenue at $17.19, a 49 % drop from the earlier $33.80 figure [1].

## Profitability trends and market constraints

Pearl’s economics are further pressured by a built‑in block‑reward reduction and limited exchange liquidity. The token is listed only on minor platforms like SafeTrade and MEXC, where thin order books can amplify price volatility [1]. While the official mining pool is tuned for high‑end datacenter GPUs (Nvidia H100 and H200), community developers have produced builds that run on consumer‑grade cards, a factor that reduces the likelihood of a repeat GPU shortage seen in earlier crypto booms [1].

## Why it matters

Pearl illustrates how “useful” proof‑of‑work can quickly attract mining resources, yet the same mechanism can cause rapid difficulty escalation that erodes profitability. The shift toward rented cloud GPUs rather than consumer hardware suggests future mining booms may bypass traditional supply‑chain constraints, but the declining reward schedule and thin market depth raise questions about the long‑term sustainability of miner incentives. As network hashrate continues to rise, miners will need to assess whether the diminishing returns justify the operational costs, especially given the limited avenues for converting PRL into more liquid assets.

## Sources
1. Tomshardware — [New AI-compute cryptocurrency Pearl sparks... | Tom's Hardware](https://www.tomshardware.com/tech-industry/cryptomining/new-ai-compute-cryptocurrency-pearl-sparks-a-gpu-mining-rush-but-profitability-is-sliding)
2. Hashrate — [Overclock and estimates mining Pearl (PRL) on NVIDIA RTX 3090](https://www.hashrate.no/gpus/3090/PRL)
3. Dgnewsru — [Новая криптовалюта на базе "AI-compute" Pearl вызвала ажиотаж...](https://dgnewsru.livejournal.com/2741463.html)

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Cite as: TrendWatcher, "Pearl cryptocurrency sparks GPU mining rush as RTX 5090 earnings halve", https://www.trendwatcher.in/article/82b2a609-121f-4c83-85c5-65aa3ec773bf