Gemini 2.5 Flash vs GPT-4.5
Which is better in 2026?
Gemini 2.5 Flash
88
Veltrix Score
vs
GPT-4.5
72
Veltrix Score
Detailed Scores
Gemini 2.5 Flash — Scores
Coding87
Reasoning88
Creativity84
Speed95
Cost Efficiency88
Context: 1000K tokens
API: $0.3 / $2.5 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 | Gemini 2.5 Flash | GPT-4.5 |
|---|---|---|
| Veltrix Score | 88/100 | 72/100 |
| Context Window | 1000K tokens | 128K tokens |
| API Cost (input/output per 1M) | $0.3 / $2.5 | $75 / $150 |
| Coding | 87/100 | 86/100 |
| Reasoning | 88/100 | 91/100 |
| Speed | 95/100 | 60/100 |
Best for — Gemini 2.5 Flash
- +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
Gemini 2.5 Flash and GPT-4.5 are both popular choices in the llm space. Gemini 2.5 Flash currently leads with a Veltrix Score of 88 compared to 72 for GPT-4.5.
In coding benchmarks, Gemini 2.5 Flash takes the lead. For reasoning tasks, GPT-4.5 performs stronger. For cost-conscious developers, Gemini 2.5 Flash 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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