Claude Haiku 4.5 vs GPT-4.5
Which is better in 2026?
Claude Haiku 4.5
83
Veltrix Score
vs
GPT-4.5
72
Veltrix Score
Detailed Scores
Claude Haiku 4.5 — Scores
Coding80
Reasoning78
Creativity75
Speed95
Cost Efficiency92
Context: 200K tokens
API: $1 / $5 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 Haiku 4.5 | GPT-4.5 |
|---|---|---|
| Veltrix Score | 83/100 | 72/100 |
| Context Window | 200K tokens | 128K tokens |
| API Cost (input/output per 1M) | $1 / $5 | $75 / $150 |
| Coding | 80/100 | 86/100 |
| Reasoning | 78/100 | 91/100 |
| Speed | 95/100 | 60/100 |
Best for — Claude Haiku 4.5
- +Code generation and review
- +Fast response times
- +Cost-efficient at scale
Best for — GPT-4.5
- +Code generation and review
- +Complex reasoning tasks
- +Creative writing
Analysis
Claude Haiku 4.5 and GPT-4.5 are both popular choices in the llm space. Claude Haiku 4.5 currently leads with a Veltrix Score of 83 compared to 72 for GPT-4.5.
In coding benchmarks, GPT-4.5 takes the lead. For reasoning tasks, GPT-4.5 performs stronger. For cost-conscious developers, Claude Haiku 4.5 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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