Another proof point for the open-weights thesis. From @RampLabs: "If we built this again, we'd lean more on open-weight models." Ramp pointed 10K agents at their own backend. Kimi K2.6 and DeepSeek V4 Pro on Fireworks recovered 7 high-severity vulnerabilities at ~5x lower cost per token than GPT 5.5. In a world of scarce (GPU) resources, both cost and value matter. AI leaders today are finding the right balance btw open & closed. "On balance, the hard cases reward a frontier model, but cheaper open-weight models still find high-severity security issues in production code at meaningful rates."
Ramp Labs Deploys 10,000 Agents on Fireworks AI to Slash Security Costs
Fireworks AI· Updated
Ramp Labs used a fleet of 10,000 autonomous agents powered by open-weight models to identify high-severity vulnerabilities in its production backend. The deployment achieved a fivefold reduction in token costs compared to GPT 5.5 while maintaining the reasoning depth required for complex security auditing.
- SWE-Bench Verified score
- 65.8%
- Cost efficiency
- ~5x lower than GPT 5.5
- Active parameters
- 32 billion
- Total experts
- 384
- Availability
- Fireworks AI API
The audit recovered seven high-severity security issues at 20% of the cost of using GPT 5.5. This shift follows Warp's open weight model routing launch, proving that specialized open models can handle high-stakes agentic loops (iterative cycles of reasoning and action) that were previously cost-prohibitive on proprietary APIs.
Kimi K2.6 utilizes a Mixture-of-Experts architecture (a design where only specialized sub-networks activate per request) to match frontier performance with higher efficiency. You can access these models via the Fireworks AI API, which recently added DeepSeek V4 Pro support with a 1-million token context window.
Still wondering? A few quick answers below.
Every HeadsUpAI update is written based on its original source and reviewed before it's published. Read our editorial standards →


