Two years ago, the question "Can open source catch up with closed source?" was still controversial. Now the answer is clear: In most routine tasks, open source has already caught up or even surpassed closed source.
Current Landscape
Open Source Camp:
- DeepSeek V3/R1 — top-tier performance, extremely low cost
- Llama 4 Scout/Maverick — native multimodal
- Qwen3 — fully open source under Apache 2.0
- Kimi K2 — trillion-parameter open weights
Closed Source Camp:
- GPT-5.x series
- Claude Opus 4.x series
- Gemini 2.5 Pro
What Advantages Does Closed Source Still Have?
- Extreme capability ceiling: The top few percentage points on SWE-bench are still dominated by closed source.
- Productized experience: The user experience of ChatGPT and Claude is significantly better than deploying open source models.
- Security and compliance: SLAs, auditing, and compliance support required by enterprise customers.
- Continuous iteration speed: The iteration frequency and investment scale of leading closed-source companies.
What Is Open Source Eating Into?
- Mid-to-low-end application scenarios: Open source models are already fully sufficient.
- Private deployment: Data-sensitive industries can only use open source.
- Pricing benchmarks: The cost of open source models forces closed source to lower prices.
- Innovation diffusion: Technologies like MoE and hybrid reasoning spread rapidly through open source.
The EU AI Act in 2026
The EU AI Act has specific exemptions for open source, but not for "high-risk" applications. This regulatory framework is generally friendly to the open source community, but there are still many gray areas in implementation.
Prediction: The future landscape may not be "open source replaces closed source," but rather a stratification — the underlying base models become open source, while upper-layer applications and services remain closed source. The value of closed source shifts from "the model itself" to "services and experiences built around the model."
Sources: Company announcements, CocoLoop, EU AI Act text