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GPT-5 vs DeepSeek V3
A detailed comparison of GPT-5 (OpenAI) and DeepSeek V3 (DeepSeek) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-5 | DeepSeek V3 | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.25 | $0.14 | -89% |
| Output / 1M tokens | $10.00 | $0.28 | -97% |
| Context window | 128K | 164K | — |
| Max output | 16.384K | 16.384K | — |
Benchmark Comparison
| Benchmark | GPT-5 | DeepSeek V3 |
|---|---|---|
| MMLU-Pro | 88.5% | 78% |
| HumanEval | 95% | 89% |
| GPQA | 73.5% | — |
Capabilities
| Capability | GPT-5 | DeepSeek V3 |
|---|---|---|
| audio | ✓ | ✗ |
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✗ |
| vision | ✓ | ✗ |
GPT-5 Strengths
- ✓Strong all-around performance
- ✓Good price for flagship tier
- ✓Multimodal including audio
GPT-5 Weaknesses
- ✗128K context vs 200K+ for newer models
- ✗Codex variants better for pure coding
DeepSeek V3 Strengths
- ✓Cheapest capable model available
- ✓Strong coding performance
- ✓Open-source
DeepSeek V3 Weaknesses
- ✗No vision support
- ✗Smaller context than competitors
- ✗China-based — availability concerns
Quick Verdict
Best value: DeepSeek V3 is the more affordable option at $0.14/$0.28 per 1M tokens.
Higher benchmarks: GPT-5 scores higher on average across available benchmarks (85.7% avg).
Larger context: DeepSeek V3 supports 164K tokens.
Choose DeepSeek V3 if cost matters most. Choose GPT-5 if you need the best possible quality for complex tasks.