stresst.io
The Independent AI Proving Grounds: Real-time stress tests and reliability reports.
OPENAI | ANTHROPIC | GOOGLE | META | GROQ
The Benchmark for AI Reliability
stresst.io provides an independent, data-driven verification layer for the AI industry. We put the world’s leading Large Language Models through rigorous stress tests to ensure accuracy, speed, and safety for developers and enterprises.
| Model Name | Provider | Reasoning (GPQA) | Speed (Tokens/s) | Context Window | Status |
|---|---|---|---|---|---|
| GPT-5.4 | OpenAI | 92.8% | 74 | 400K | STABLE |
| Claude 4.6 | Anthropic | 91.3% | 51 | 1M | STABLE |
| Gemini 3.1 Pro | 94.3% | 108 | 1M | OPTIMIZED | |
| Llama 4 Scout | Meta | 69.8% | 120 | 10M | OPEN |
| Grok 4.20 | xAI/Groq | 87.7% | 235 | 128K | ULTRA-FAST |
Explore Our Comprehensive AI Stress-Testing Suites
Our team conducts in-depth evaluations of AI models, focusing on benchmarking their performance, accuracy, and reliability.
Latency Analysis
Measuring millisecond response times and tokens-per-second across global regions.
Context Window Saturation
Testing retrieval accuracy as we push models to their maximum token limits.
Certified Reliability Scores
Generating verifiable PDF reports for enterprise compliance and safety standards.
Adversarial Testing
We actively attempt to trigger hallucinations to find the model’s true breaking point.
Inference Efficiency
We analyze how models manage compute resources to deliver cost-effective performance without sacrificing quality.
Trusted by Frontier Engineers & Research Labs
Independent verification and performance audits for the world’s most advanced AI systems.
Stresst.io provided the raw data we needed to push our production models to the edge. Their adversarial testing identified critical breaking points we hadn’t seen in-house.
Dr. Aris Thorne
Lead ML Architect at NeuralScale
Testimonials represent the types of technical feedback received during our beta testing phase and may include pseudonyms for privacy.
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They found speed issues we didn’t even know we had.
The most detailed AI safety report I have ever seen.
Now we know exactly which AI model to buy for our team.
The Stresst.io Infrastructure
Leveraging high-performance compute and proprietary benchmarking algorithms to deliver precision data
Get Your AI Performance Report
Want to know how your AI model really performs? We test for speed, accuracy, and reliability so you can launch with confidence.