Introduction: When AI Gets Math Wrong
A recent viral Reddit post caught ChatGPT making a math mistake that left everyone scratching their heads:👉 9 + 9 + 11 = 30?! 🤯
This isn’t just a funny error—it exposes a critical flaw in how AI math solvers handle mathematical reasoning. While ChatGPT is excellent at generating text, does it really understand math?
To find out, we put three AI math solvers to the test:
- ChatGPT – A general-purpose AI that can attempt math.
- DeepSeek Math – A more advanced AI built for structured math.
- Mathsolver.top – A dedicated AI math solver designed for accuracy and learning.
Which one actually delivers correct, reliable math solutions? Let’s compare!
How Well Do AI Math Solvers Actually Solve Math?
🔹 ChatGPT: Great at Words, Not at Math
ChatGPT is trained as a large language model (LLM)—meaning it predicts the most probable next word, not necessarily the correct mathematical answer. This is why it confidently claims:❌ 9 + 9 + 11 = 30
While ChatGPT can handle basic arithmetic, it struggles with:
- Logical reasoning (like odd + odd + odd = odd)
- Step-by-step problem solving
- Complex math with symbols or equations
It often gives incorrect answers that “sound” right, making it unreliable for serious math work.
🔎 Verdict: Good for explanations, bad for actual problem-solving.
🔹 DeepSeek Math: More Math-Focused, But Not a Tutor
DeepSeek Math was developed specifically for mathematical reasoning. Unlike ChatGPT, it doesn’t just predict words—it applies structured algorithms to solve math problems more reliably.
✅ Better at algebra, calculus, and symbolic math
✅ Lower error rate than ChatGPT
❌ Focuses on computations, lacks step-by-step explanations
❌ Not designed for student-friendly tutoring
While it’s more accurate than ChatGPT, DeepSeek Math still lacks interactive tutoring features—it solves problems, but doesn’t necessarily explain why the answer is correct.
🔎 Verdict: More reliable for computations, but not ideal for learning.
**🔹 Mathsolver.top : The Best AI Math Solver for Accuracy & Learning
Unlike ChatGPT and DeepSeek Math, Mathsolver.top is built specifically for students and test-takers who need more than just answers—it provides accurate solutions + step-by-step explanations.
✅ Understands math rules & logical principles
✅ Supports image uploads (great for handwritten problems)
✅ Gives detailed explanations with follow-up questions
✅ Best for SAT prep and structured learning
When solving the Reddit problem, Mathsolver.top immediately recognized that three odd numbers cannot sum to an even number—unlike ChatGPT, which confidently gave the wrong answer.
🔎 Verdict: Best choice for accurate, explainable, and step-by-step AI math help.
Final Comparison: ChatGPT vs. DeepSeek Math vs. Mathsolver.top
| Feature | ChatGPT 🤖 | DeepSeek Math 🔢 | Mathsolver.top 📚 |
| Basic arithmetic | ✅ Sometimes | ✅ Good | ✅ Excellent |
| Logic-based math | ❌ Often wrong | ✅ Better | ✅ Best |
| Step-by-step solutions | ❌ No | ❌ Limited | ✅ Yes |
| Supports math symbols | ❌ No | ✅ Yes | ✅ Yes |
| Image uploads | ❌ No | ❌ No | ✅ Yes |
| Best for SAT prep | ❌ No | ❌ Not designed for it | ✅ Yes |
Which AI Math Solver Should You Use?
✅ Want quick text-based responses? Use ChatGPT, but don’t trust it for real math.
✅ Need a better math solver? DeepSeek Math is more accurate but lacks explanations.
✅ Want an AI that actually teaches math? Mathsolver.top is the best choice.