### Calendar Updates: The most common thing I end up reaching to an AI assistant I can text with is to handle calendar updates. We do weekly family planning where we can have to add ~20 events that are occuring in the next week. Calendar Prompt: ``` Add this to my calendar April 9th - Babysitting 10-4:30p - Doctors Appointment 4:30-5:30p ```
Performance, cost, and real-world capability benchmarks across the latest frontier open-weight models. Each model is tested against the same prompts so you can compare apples-to-apples — and click through to see the raw output for yourself.
| Model | Pricing | 🎨 Marketing Design | 📅 Calendar Updates | ||||
|---|---|---|---|---|---|---|---|
| Input /1M | Output /1M | Score | Cost | Score / $ | Cost | Pass/Fail | |
| *anthropic/opus-4.7* | $5 | $25 | 100 | $1.24 | 80.65 | — | — |
| z-ai/glm-5.1 | $1.395 | $4.40 | 60 | $0.162 | 370.37 | — | — |
| minimax/minimax-m2.7 | $0.133 | $1.20 | 60 | $0.0266 | 2255.64 | — | — |
| moonshotai/kimi-k2.5 | $0.6 | $3.00 | 60 | $0.119 | 504.20 | — | — |
| qwen/qwen3.6-plus | $0.325 | $1.95 | 20 | $0.0277 | 722.02 | — | — |
| stepfun/step-3.5-flash | $0.032 | $0.300 | 10 | $0.00488 | 2049.18 | $0.0026 | ✅ |
| Deepseek 3.2 | $0.26 | $0.38 | — | — | — | — | — |
| stepfun/step-3.5-flash (dirac) | $0.032 | $0.300 | 40 | $0.007 | 5714.29 | — | — |
| z-ai/glm-5.1 (dirac) | $1.395 | $4.40 | 30 | $0.112 | 267.86 | — | — |
| moonshotai/kimi-k2.6 | $0.95 | $4.00 | 60 | $0.20 | 300.00 | — | — |