GPT-4.1 vs DeepSeek V3

Performance benchmarks + pricing comparison — updated April 2026

GPT-4.1

OpenAI

Updated GPT-4 generation with improved instruction following and reduced hallucination. Better coding accuracy than GPT-4o.

Input$2.00/M
Output$8.00/M
Context128K tokens
Best ForProduction coding, API development, complex instructions
Benchmark80/100

DeepSeek V3

DeepSeek

DeepSeek's latest general model. Competitive with Claude Sonnet at a fraction of the cost.

Input$0.140/M
Output$0.280/M
Context128K tokens
Best ForCost-effective coding and general tasks

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGPT-4.1DeepSeek V3Savings
Small Script (1K lines) $0.31 $0.01 DeepSeek V3 saves $0.30 (96%)
Medium Feature (10K lines) $2.30 $0.11 DeepSeek V3 saves $2.19 (95%)
Large Project (50K lines) $11.50 $0.53 DeepSeek V3 saves $10.97 (95%)
Code Review (5K lines) $0.55 $0.03 DeepSeek V3 saves $0.52 (94%)

Verdict

DeepSeek V3 wins on both price and performance — $0.140/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models