Compare Models
Select models (max 5)
Claude Opus 5.5GPT-5.6 Luna
 |  |  |
|---|---|---|
| Vals IndexGDP-weighted benchmark | 66.97%±0.89 | 51.69%±1.06 |
| Legal Research BenchAgentic US legal research | 50.48%±3.48 | 36.54%±3.35 |
| Finance Agent (v2)Core financial analyst tasks | 58.59%±0.17 | 55.04%±0.31 |
| Tax Agent BenchAgentic US corporate tax research | 70.50%±3.15 | 60.81%±3.26 |
| MedCodeMedical billing code support | 49.80%±2.27 | 42.39%±2.27 |
| Terminal-Bench ScienceExpert-authored scientific research workflows | 47.14%±6.01 | 0.00%±0.00 |
| Code MigrationRewriting programs in new languages | 66.65%±4.33 | 44.55%±4.24 |
| Terminal-Bench 4.0Frontier-difficulty terminal tasks | 65.15%±0.00 | 11.62%±1.01 |
| Vibe Code Bench v1.1Building web apps from scratch | 90.29%±1.53 | 77.06%±3.07 |
Benchmarks
Vals Index *
Claude Opus 5.5
0.00%± 0.89
(43/43)GPT-5.6 Luna
0.00%± 1.06
(43/43)Legal Research Bench *
Claude Opus 5.5
0.00%± 3.48
(73/73)GPT-5.6 Luna
0.00%± 3.35
(73/73)Finance Agent (v2) *
Claude Opus 5.5
0.00%± 0.17
(74/74)GPT-5.6 Luna
0.00%± 0.31
(74/74)Tax Agent Bench *
Claude Opus 5.5
0.00%± 3.15
(65/65)GPT-5.6 Luna
0.00%± 3.26
(65/65)MedCode *
Claude Opus 5.5
0.00%± 2.27
(104/104)GPT-5.6 Luna
0.00%± 2.27
(104/104)Terminal-Bench Science
Claude Opus 5.5
0.00%± 6.01
(38/38)GPT-5.6 Luna
0.00%± 0.00
(38/38)Code Migration *
Claude Opus 5.5
0.00%± 4.33
(73/73)GPT-5.6 Luna
0.00%± 4.24
(73/73)Terminal-Bench 4.0
Claude Opus 5.5
0.00%± 0.00
(43/43)GPT-5.6 Luna
0.00%± 1.01
(43/43)Vibe Code Bench v1.1 *
Claude Opus 5.5
0.00%± 1.53
(108/108)GPT-5.6 Luna
0.00%± 3.07
(108/108)Overall performance
Performance on the Vals Index, a GDP-weighted aggregation of tasks across finance, coding, and law
•2026-10-02
Comparison by Industry
Model performance on different sections of the economy.
Legal
27.12%
vs.40.61%
Finance
68.34%
vs.65.29%
Healthcare
70.61%
vs.63.39%
Math
100.00%
vs.60.00%
Science
58.65%
vs.25.30%
Academic
N/A
vs.87.58%
Education
45.83%
vs.44.22%
Coding
61.00%
vs.46.38%
Cyber
44.47%
vs.73.63%
Social Mobility
70.64%
vs.61.16%
Cost Analysis
Per task and per token model pricing.
Vals Index · USD
$32.14
$0.824
Cost / TestVals Index
$32.14
vs.$0.824
Input Cost/ 1M Tokens
$4.00
vs.$0.20
Input Cache Write/ 1M Tokens
$5.00
vs.$0.25
Input Cache Read/ 1M Tokens
$0.40
vs.$0.02
Output Cost/ 1M Tokens
$20.00
vs.$1.20
Model Metadata
Basic information about each model.
| | |
|---|---|---|
| Model provider | Anthropic | OpenAI |
| Latency | 4710.68s | 1767.44s |
| Cost (In/Out) | $4 / $20 | $0.2 / $1.2 |
| Context Window | 1M | 1M |
| Max Output Token | 128k | 128k |
| Input Modality |