Benchmarks · Coding · Agents & computer use
Code Migration v1.1
Rewrite a real program in another programming language so that it still works. Version 1.1, the one inside the Vals Index; its own page still shows version 1. From Vals AI.
29 models · 29 results · updated 2026-11-11 · vals.ai ↗
Leaderboard
Sonnet 5.5 max
Heavy line: best score at each price. Thin lines join one model's effort levels. Cost uses each model's median subscription plan, or API price with no plan data. 14 more models under All models in settings.
More from this benchmark
1 published measuresTime per task37 results · lower is better
14 more models under All models in settings.
All results
29 rows| # | Model | Effort | Code Migration v1.1 | Subscription $ / task | API $ / task | Time |
|---|---|---|---|---|---|---|
| 1 | Sonnet 5.5 | max | 87.4% | $0.69 | $45 | 4.1 h |
| 2 | Fable 5.2 | high | 85.8% | $2.52 | $69 | 3.2 h |
| 3 | Gemini 4 Hydrogen | xhigh | 82.7% | $33 | $46 | 2.0 h |
| 4 | Opus 5.5 | max | 80.5% | $1.09 | $72 | 3.5 h |
| 5 | Gemini 4 Carbon | high | 80.1% | $24 | $34 | 2.1 h |
| 6 | GPT-6 Astra | max | 78.0% | $2.85 | $67 | 1.5 h |
| 7 | GPT-6.1 Sol | max | 75.1% | $0.33 | $9.94 | 1.7 h |
| 8 | Gemini 4 Argon | high | 74.4% | $32 | $45 | 2.3 h |
| 9 | GPT-6.1 Terra | max | 72.2% | $0.23 | $6.02 | 1.2 h |
| 10 | DeepSeek V4.1 Flash 1017 | max | 68.5% | free | $1.57 | 2.3 h |
| 11 | Hy4 | max | 59.1% | $0.93 | $3.24 | 1.7 h |
| 12 | GLM 5.3 | max | 54.1% | $3.48 | $34 | 3.0 h |
| 13 | DeepSeek V4 Pro 0813 | max | 52.0% | $12 | $12 | 3.0 h |
| 14 | Grok 4.7 | xhigh | 51.8% | $3.06 | $33 | 1.1 h |
| 15 | GLM 5.3 Flash | max | 50.6% | free | $8.27 | 3.3 h |
| 16 | Haiku 5.5 | max | 50.2% | $0.13 | $6.13 | 1.4 h |
| 17 | Muse Ember | max | 47.1% | $0.60 | $0.60 | 1.2 h |
| 18 | MiMo V2.6 Pro | max | 47.1% | $0.75 | $0.89 | 3.4 h |
| 19 | Step 5 Preview | high | 46.9% | $8.48 | $8.48 | 3.1 h |
| 20 | GPT-6 Luna | max | 45.5% | $0.052 | $0.71 | 59 min |
| 21 | Hy4 preview | high | 44.7% | $2.58 | $3.42 | 1.8 h |
| 22 | Inkling 2 Small | max | 39.5% | free | $16 | 3.6 h |
| 23 | MiMo V2.6 Flash | high | 38.8% | free | $0.61 | 4.1 h |
| 24 | Gemini 3.8 Flash | high | 38.2% | $0.34 | $8.31 | 2.1 h |
| 25 | Mercury 3 | high | 36.9% | $2.21 | $2.21 | 1.6 h |
| 26 | Muse Spark Open | xhigh | 25.1% | $4.64 | $4.64 | 1.8 h |
| 27 | Kimi K3 | max | 22.7% | $1.77 | $20 | 4.5 h |
| 28 | Inkling Small | max | 10.4% | $1.28 | $1.59 | 19 min |
| 29 | Inkling | max | 8.6% | $0.55 | $6.02 | 24 min |