LV
LLMversus

GPT-3.5 Turbo vs GPT-4.5: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare GPT-3.5 Turbo and GPT-4.5 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-3.5 TurboGPT-4.5
ProviderOpenAIOpenAI
Input Price / 1M tokens$0.500$75.00
Output Price / 1M tokens$1.50$150.00
Context Window
16K
128K
Max Output Tokens
4,096
8,192
Arena ELO
1,120
1,290
Coding ELO
1,100
1,295
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalNoYes
JSON ModeYesYes
Function CallingYesYes
VisionNoYes
When to Use GPT-3.5 Turbo

GPT-3.5 Turbo excels at cost-effective, general-purpose tasks.

Strengths:

  • Very cheap
  • Fast
  • Widely used

Best for:

cost-effectivegeneral-purpose
When to Use GPT-4.5

GPT-4.5 excels at multimodal, vision, general-purpose tasks.

Strengths:

  • Latest OpenAI model
  • Strong multimodal
  • Fast inference

Best for:

multimodalvisiongeneral-purpose

Related Comparisons

Claude Opus 4 vs GPT-4.5Claude Opus 4 vs GPT-3.5 TurboGemini 2 5 Pro vs GPT-4.5Gemini 2 5 Pro vs GPT-3.5 TurboGPT-4.5 vs O3GPT-3.5 Turbo vs O3Deepseek R1 vs GPT-4.5Deepseek R1 vs GPT-3.5 TurboGPT-4.5 vs O1GPT-3.5 Turbo vs O1GPT-4.5 vs Qwen 3 235bGPT-3.5 Turbo vs Qwen 3 235bGemini Exp 1206 vs GPT-4.5Gemini Exp 1206 vs GPT-3.5 TurboGPT-4.5 vs Groq Deepseek R1GPT-4.5 vs Llama 4 MaverickGPT-4.5 vs Together Deepseek R1GPT-4.5 vs Grok 3Claude Sonnet 4 vs GPT-4.5Deepseek V3 vs GPT-4.5