DeepSeek Chat V3 vs GPT-4.1 mini
Performance benchmarks + pricing comparison — updated April 2026
DeepSeek Chat V3
DeepSeekVery affordable general-purpose model from DeepSeek. Strong coding and reasoning at low cost.
| Input | $0.270/M |
| Output | $1.10/M |
| Context | 128K tokens |
| Best For | Cost-sensitive projects, coding, general tasks |
| Benchmark | 62/100 |
GPT-4.1 mini
OpenAICost-optimized GPT-4.1 variant. Strong coding capability at budget pricing, replacing GPT-4o mini for many use cases.
| Input | $0.400/M |
| Output | $1.60/M |
| Context | 128K tokens |
| Best For | High-volume coding, cost-sensitive projects, automation |
| Benchmark | 68/100 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | DeepSeek Chat V3 | GPT-4.1 mini | Leader |
|---|---|---|---|
| Overall Score | 62 | 68 | GPT-4.1 Mini leads by 6pts |
| SWE-bench Verified | 56 | 62 | GPT-4.1 Mini leads by 6pts |
| LiveCodeBench | 64 | 70 | GPT-4.1 Mini leads by 6pts |
| HumanEval | 84 | 86 | GPT-4.1 Mini leads by 2pts |
| BigCodeBench | 46 | 54 | GPT-4.1 Mini leads by 8pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | DeepSeek Chat V3 | GPT-4.1 mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.04 | $0.06 | DeepSeek Chat V3 saves $0.02 (32%) |
| Medium Feature (10K lines) | $0.31 | $0.46 | DeepSeek Chat V3 saves $0.15 (32%) |
| Large Project (50K lines) | $1.57 | $2.30 | DeepSeek Chat V3 saves $0.73 (32%) |
| Code Review (5K lines) | $0.07 | $0.11 | DeepSeek Chat V3 saves $0.04 (32%) |
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 |
|---|---|---|---|
| DeepSeek Chat V3 | 62 | $0.004/pt | Better value |
| GPT-4.1 mini | 68 | $0.022/pt | Higher cost per point |
DeepSeek Chat V3 delivers the best value at $0.004 per score point.
Strengths & Weaknesses
DeepSeek Chat V3
- + Excellent value
- + Strong coding focus
- - Less general-purpose
GPT-4.1 mini
- + Good value
- + Latest architecture
- - Mini variant limitations
Verdict
DeepSeek Chat V3 is cheaper at $0.270/M, but GPT-4.1 mini scores higher on benchmarks (68 vs 62).
Choose DeepSeek Chat V3 for cost-sensitive projects, GPT-4.1 mini when performance matters most.
Compare with Other Models
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