GPT-4o vs Grok-2: Benchmark Comparison
Detailed comparison of GPT-4o and Grok-2 covering benchmarks, pricing, context window, and compliance.
Key Specifications
| Specification | GPT-4o | Grok-2 |
|---|---|---|
| Vendor | openai | xai |
| Version | 4o | 2 |
| Release Date | 2024-05-13 | 2024-08-13 |
| Context Window | 128000 tokens | 131072 tokens |
| Input Modalities | text, image, audio | text, image |
| Output Modalities | text, audio | text |
| License | Proprietary | Proprietary |
| SOC2 | ✓ | ✗ |
| HIPAA | ✓ | ✗ |
| GDPR | ✓ | ✗ |
| ISO 27001 | ✓ | ✗ |
Benchmark Results
| Benchmark | GPT-4o | Grok-2 | Winner |
|---|---|---|---|
| BBH | 83.1 | 84 | Grok-2 |
| GSM8K | 95.8 | 93.2 | GPT-4o |
| HUMANEVAL | 90.2 | 88.4 | GPT-4o |
| MATH | 76.6 | 76.8 | Grok-2 |
| MMLU | 88.7 | 87.5 | GPT-4o |
Pricing Comparison
| Tier (per Mtok) | GPT-4o | Grok-2 |
|---|---|---|
| Input | $2.5 | $2 |
| Output | $10 | $10 |
| Cache Read | $1.25 | $0 |
| Cache Write | $2.5 | $0 |
GPT-4o vs Grok-2
Model Overview
GPT-4o and Grok-2 are both notable options in the AI model market. This page compares their benchmarks, pricing, and compliance.
Key Specifications
| Vendor | Release Date | Context Window | License |
|---|---|---|---|
| Openai / Xai | 2024-05-13 / 2024-08-13 | 128K / 131K | Proprietary / Proprietary |
Benchmark Performance
| Benchmark | GPT-4o | Grok-2 | Winner |
|---|---|---|---|
| BBH (BIG-Bench Hard) | 83.1 | 84.0 | B |
| GSM8K (Grade School Math 8K) | 95.8 | 93.2 | A |
| HumanEval | 90.2 | 88.4 | A |
| MATH | 76.6 | 76.8 | Tie |
| MMLU (Massive Multitask Language Understanding) | 88.7 | 87.5 | A |
Pricing Comparison
| Input | Output | Cache Read | Cache Write |
|---|---|---|---|
| — / — | — / — | — / — | — / — |
per million tokens — A / B
Strengths & Weaknesses
GPT-4o
- ✅ MMLU score 88.7, strong knowledge reasoning.
- ✅ HumanEval 90.2, excellent code generation.
- ✅ GSM8K 95.8, robust math reasoning.
- ✅ Input Modalities: text, image, audio.
- ⚠️ Proprietary, not self-hostable.
Grok-2
- ✅ MMLU score 87.5, strong knowledge reasoning.
- ✅ HumanEval 88.4, excellent code generation.
- ✅ GSM8K 93.2, robust math reasoning.
- ✅ Input Modalities: text, image, audio.
- ⚠️ Proprietary, not self-hostable.
Editor’s Take
GPT-4o and Grok-2 each have their strengths. Choose based on workload (code, long context, vision), referencing the tables above.
FAQ
Which model is better for coding tasks?
Refer to the HumanEval benchmark table; the model with a higher score is better suited for coding tasks.
Which model is cheaper?
Refer to the pricing comparison table above; the model with lower input/output prices is more cost-effective.
Which has a longer context window?
Refer to the key specifications table; the model with a larger context window is better for long documents.
References
Editor's Take
See Editor's Take section.