GPT-3.5 Turbo vs Grok 3 Mini
Performance benchmarks + pricing comparison — updated April 2026
GPT-3.5 Turbo
OpenAIBudget model for simple tasks. Being phased out but still widely used.
| Input | $0.500/M |
| Output | $1.50/M |
| Context | 16K tokens |
| Best For | Simple chatbots, basic text generation |
| Benchmark | 40/100 |
Grok 3 Mini
xAICost-effective xAI model for high-volume tasks. Good balance of capability and affordability.
| Input | $0.300/M |
| Output | $0.500/M |
| Context | 128K tokens |
| Best For | High-volume tasks, simple coding, cost-sensitive projects |
| Benchmark | 50/100 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | GPT-3.5 Turbo | Grok 3 Mini | Leader |
|---|---|---|---|
| Overall Score | 40 | 50 | Grok 3 Mini leads by 10pts |
| SWE-bench Verified | 32 | 42 | Grok 3 Mini leads by 10pts |
| LiveCodeBench | 42 | 52 | Grok 3 Mini leads by 10pts |
| HumanEval | 62 | 72 | Grok 3 Mini leads by 10pts |
| BigCodeBench | 26 | 36 | Grok 3 Mini leads by 10pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | GPT-3.5 Turbo | Grok 3 Mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.06 | $0.03 | Grok 3 Mini saves $0.04 (59%) |
| Medium Feature (10K lines) | $0.48 | $0.21 | Grok 3 Mini saves $0.27 (57%) |
| Large Project (50K lines) | $2.38 | $1.02 | Grok 3 Mini saves $1.35 (57%) |
| Code Review (5K lines) | $0.13 | $0.07 | Grok 3 Mini saves $0.06 (48%) |
Value Analysis (Price per Benchmark Score Point)
Lower is better — how much you pay for each point of benchmark performance.
| Model | Overall Score | Price per Score Point | Verdict |
|---|---|---|---|
| GPT-3.5 Turbo | 40 | $0.013/pt | Higher cost per point |
| Grok 3 Mini | 50 | $0.006/pt | Better value |
Grok 3 Mini delivers the best value at $0.006 per score point.
Strengths & Weaknesses
GPT-3.5 Turbo
- + Ultra-cheap
- + Very fast
- - Basic coding only
Grok 3 Mini
- + Budget option
- + Fast
- - Limited capabilities
Verdict
Grok 3 Mini wins on both price and performance — $0.300/M input with a benchmark score of 50/100.
For most developers, this is the clear choice between these two models.
Compare with Other Models
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Claude 3.5 Sonnet
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Claude 3.5 Haiku
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Claude 3 Opus
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