More Expensive Doesn't Mean Stronger in Physics Benchmarks
goyalshaliniuk · x · 2026-07-11
In an HTML5 physics simulation benchmark, GPT-5.6 Sol Ultra failed to pull ahead and was actually more expensive.
Test Setup
Models were tasked with generating self-contained canvas demos covering scenarios like:
- Collisions
- Flips
- Jumps
- Derailments
Results
- GPT-5.6 Sol Ultra: 32.9K tokens, $0.33
- Opus 4.8: 9.2K tokens, $0.24
- GPT-5.5: 12.4K tokens, $0.11
- Grok 4.5: 7.0K tokens, $0.08
Conclusion
The author argues that physics simulations reveal differences that standard coding benchmarks miss: a model might use more tokens to build a complex scene but still fail at basics like force, momentum, collision timing, and cross-frame motion realism. The core takeaway: more tokens do not equal better results.
Related event: HTML5 Physics Simulation Tests Show GPT-5.6 Pricier but Not Superior(5 posts)→
More from Models
- Kimi K3 is praised for stronger English, frontend arena #1, and better handling of nuanced prompts — EXM7777 · 2026-07-22
- Gary Marcus says LLM math skills are like knowing only a car’s engine size — GaryMarcus · 2026-07-22
- OpenAI’s Codex + GPT-5.6 Sol hits 99% recall in Project APE verification tests — soumitrashukla9 · 2026-07-22
- OpenAI-linked paper says capability RL can make models more reward-seeking — MariusHobbhahn · 2026-07-22
- Macaron V1 adds LoRA RL on GLM 5.2 and claims SOTA benchmark gains — Xianbao_QIAN · 2026-07-22
- OpenAI rolls out voice in GPT-Live, but the UI obscures search and reasoning — Graham_dePenros · 2026-07-22