Looking for an honest OpenAI GPT-3.5 Turbo vs OpenAI o3 comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the OpenAI o3 comes out ahead 41/100 to 71/100 — a 30-point gap. The widest gap is in design and build, where the OpenAI o3 pulls noticeably ahead.
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OpenAI o3 clearly outperforms the OpenAI GPT-3.5 Turbo in the ai language models category, especially in design, scoring 71 vs 41. If you want the better overall ai language models, OpenAI o3 is the recommended choice.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | GPT-3.5 Turbo | OpenAI o3 |
|---|---|---|
| Input (Prompt) | ✓$0.50/1M | $10.00/1M |
| Output (Completion) | ✓$1.50/1M | $40.00/1M |
| Open Source | Proprietary | Proprietary |
Context Window (tokens)
| Metric | GPT-3.5 Turbo | OpenAI o3 |
|---|---|---|
| Max Output | 4,096 tok | ✓100,000 tok |
| Speed | ✓400 tok/s | 40 tok/s |
| Time to First Token | ✓100ms | 3.0s |
| Languages | 50+ | 50+ |
Higher is better. Industry-standard AI evaluation benchmarks.
GPT-3.5 Turbo
OpenAI o3
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OpenAI o3
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OpenAI o3
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OpenAI o3
GPT-3.5 Turbo
OpenAI o3
| Feature | GPT-3.5 Turbo | OpenAI o3 |
|---|---|---|
| Reasoning / Chain-of-Thought | ✕ | ✓ |
| Vision (Image Input) | ✕ | ✓ |
| Audio Input | ✕ | ✕ |
| Video Input | ✕ | ✕ |
| Image/Audio Output | ✕ | ✕ |
| Function Calling / Tools | ✓ | ✓ |
| JSON Mode | ✓ | ✓ |
| Real-time Web Access | ✕ | ✕ |
| Fine-tuning Support | ✓ | ✕ |
| Batch API | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| Open Source | ✕ | ✕ |
| Field | GPT-3.5 Turbo | OpenAI o3 |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Knowledge Cutoff | 2021-09 | 2025-01 |
| Best For | legacysimple taskshigh volumecost efficiency | mathsciencecodingcompetition problemsresearch |
Buy OpenAI GPT-3.5 Turbo if…
Choose the OpenAI GPT-3.5 Turbo if budget is your top priority — it offers competitive specs at a lower price point.
Buy OpenAI o3 if…
Buy the OpenAI o3 if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
OpenAI o3 clearly outperforms the OpenAI GPT-3.5 Turbo in the ai language models category, especially in design, scoring 71 vs 41. If you want the better overall ai language models, OpenAI o3 is the recommended choice.
No, OpenAI o3 scores higher (75 vs 75).
Check the latest prices using the buy links above.
Choose the OpenAI GPT-3.5 Turbo if budget is your top priority — it offers competitive specs at a lower price point.
Buy the OpenAI o3 if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Reviewed by VersusMatrix Editorial Team
Last updated: April 28, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
