Looking for an honest OpenAI GPT-3.5 Turbo vs xAI Grok 3.5 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 xAI Grok 3.5 comes out ahead 41/100 to 76/100 — a 35-point gap. The widest gap is in design and build, where the xAI Grok 3.5 pulls noticeably ahead.
OpenAI
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xAI Grok 3.5 clearly outperforms the OpenAI GPT-3.5 Turbo in the ai language models category, especially in design, scoring 76 vs 41. If you want the better overall ai language models, xAI Grok 3.5 is the recommended choice.
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.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | GPT-3.5 Turbo | Grok 3.5 |
|---|---|---|
| Input (Prompt) | ✓$0.50/1M | $3.00/1M |
| Output (Completion) | ✓$1.50/1M | $15.00/1M |
| Open Source | Proprietary | Proprietary |
Context Window (tokens)
| Metric | GPT-3.5 Turbo | Grok 3.5 |
|---|---|---|
| Max Output | 4,096 tok | ✓16,384 tok |
| Speed | ✓400 tok/s | 85 tok/s |
| Time to First Token | ✓100ms | 600ms |
| Languages | ✓50+ | 40+ |
Higher is better. Industry-standard AI evaluation benchmarks.
GPT-3.5 Turbo
Grok 3.5
GPT-3.5 Turbo
Grok 3.5
GPT-3.5 Turbo
Grok 3.5
GPT-3.5 Turbo
Grok 3.5
GPT-3.5 Turbo
Grok 3.5
| Feature | GPT-3.5 Turbo | Grok 3.5 |
|---|---|---|
| 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 | Grok 3.5 |
|---|---|---|
| Provider | OpenAI | xAI |
| Knowledge Cutoff | 2021-09 | 2025-07 |
| Best For | legacysimple taskshigh volumecost efficiency | reasoningcodingreal time infomath |
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 xAI Grok 3.5 if…
Buy the xAI Grok 3.5 if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
xAI Grok 3.5 clearly outperforms the OpenAI GPT-3.5 Turbo in the ai language models category, especially in design, scoring 76 vs 41. If you want the better overall ai language models, xAI Grok 3.5 is the recommended choice.
No, xAI Grok 3.5 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 xAI Grok 3.5 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.