DeepSeek Reasoner (R1) vs Gemini 2.5 Flash Lite

Performance benchmarks + pricing comparison — updated April 2026

DeepSeek Reasoner (R1)

DeepSeek

DeepSeek's reasoning model. Comparable to OpenAI's o1 but at much lower cost.

Input$0.550/M
Output$2.19/M
Context128K tokens
Best ForComplex reasoning, math, advanced coding
Benchmark72/100

Gemini 2.5 Flash Lite

Google

The most affordable Gemini model. Ultra-low cost for high-volume, simple coding and text tasks.

Input$0.037/M
Output$0.150/M
Context1M tokens
Best ForHigh-volume tasks, batch processing, cost-optimized pipelines

Cost Comparison by Scenario

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

ScenarioDeepSeek Reasoner (R1)Gemini 2.5 Flash LiteSavings
Small Script (1K lines) $0.08 <$0.01 Gemini 2.5 Flash Lite saves $0.08 (93%)
Medium Feature (10K lines) $0.63 $0.04 Gemini 2.5 Flash Lite saves $0.59 (93%)
Large Project (50K lines) $3.15 $0.22 Gemini 2.5 Flash Lite saves $2.94 (93%)
Code Review (5K lines) $0.15 $0.01 Gemini 2.5 Flash Lite saves $0.14 (93%)

Verdict

Gemini 2.5 Flash Lite wins on both price and performance — $0.037/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