Claude Sonnet 4.6 vs GPT-4.5
Which is better in 2026?
Claude Sonnet 4.6
90
Veltrix Score
vs
GPT-4.5
72
Veltrix Score
Detailed Scores
Claude Sonnet 4.6 — Scores
Coding92
Reasoning93
Creativity91
Speed88
Cost Efficiency82
Context: 1000K tokens
API: $3 / $15 per 1M tokens
GPT-4.5 — Scores
Coding86
Reasoning91
Creativity90
Speed60
Cost Efficiency28
Context: 128K tokens
API: $75 / $150 per 1M tokens
Key Differences
| Aspect | Claude Sonnet 4.6 | GPT-4.5 |
|---|---|---|
| Veltrix Score | 90/100 | 72/100 |
| Context Window | 1000K tokens | 128K tokens |
| API Cost (input/output per 1M) | $3 / $15 | $75 / $150 |
| Coding | 92/100 | 86/100 |
| Reasoning | 93/100 | 91/100 |
| Speed | 88/100 | 60/100 |
Best for — Claude Sonnet 4.6
- +Code generation and review
- +Complex reasoning tasks
- +Creative writing
- +Fast response times
- +Cost-efficient at scale
Best for — GPT-4.5
- +Code generation and review
- +Complex reasoning tasks
- +Creative writing
Analysis
Claude Sonnet 4.6 and GPT-4.5 are both popular choices in the llm space. Claude Sonnet 4.6 currently leads with a Veltrix Score of 90 compared to 72 for GPT-4.5.
In coding benchmarks, Claude Sonnet 4.6 takes the lead. For reasoning tasks, Claude Sonnet 4.6 performs stronger. For cost-conscious developers, Claude Sonnet 4.6 offers better value per token.
This comparison is generated from live Veltrix ranking data. Scores are updated multiple times per week as new benchmarks and user data become available.
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