DeepSeek Chat V3 vs GPT-4.1 Nano

Performance benchmarks + pricing comparison — updated April 2026

DeepSeek Chat V3

DeepSeek

Very affordable general-purpose model from DeepSeek. Strong coding and reasoning at low cost.

Input$0.270/M
Output$1.10/M
Context128K tokens
Best ForCost-sensitive projects, coding, general tasks
Benchmark62/100

GPT-4.1 Nano

OpenAI

OpenAI's smallest and cheapest GPT-4.1 model. Fast responses for simple tasks.

Input$0.100/M
Output$0.400/M
Context1M tokens
Best ForSimple queries, classification, fast responses

Cost Comparison by Scenario

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

ScenarioDeepSeek Chat V3GPT-4.1 NanoSavings
Small Script (1K lines) $0.04 $0.02 GPT-4.1 Nano saves $0.03 (63%)
Medium Feature (10K lines) $0.31 $0.12 GPT-4.1 Nano saves $0.20 (63%)
Large Project (50K lines) $1.57 $0.58 GPT-4.1 Nano saves $1.00 (63%)
Code Review (5K lines) $0.07 $0.03 GPT-4.1 Nano saves $0.05 (63%)

Verdict

GPT-4.1 Nano wins on both price and performance — $0.100/M input with a benchmark score of N/A/100.

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

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