GPT-4o mini vs Reka Flash

Performance benchmarks + pricing comparison — updated April 2026

GPT-4o mini

OpenAI

Affordable small model. Fast and cost-effective for high-volume coding tasks.

Input$0.150/M
Output$0.600/M
Context128K tokens
Best ForHigh-volume tasks, simple coding, cost-sensitive projects
Benchmark58/100

Reka Flash

Reka

Reka's fast multimodal model. Compact and efficient for high-volume tasks with vision capability.

Input$0.200/M
Output$0.800/M
Context128K tokens
Best ForHigh-volume tasks, vision + text, cost optimization
Benchmark40/100

Benchmark Performance Comparison

Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.

BenchmarkGPT-4o miniReka FlashLeader
Overall Score 58 40 GPT-4o Mini leads by 18pts
SWE-bench Verified 50 32 GPT-4o Mini leads by 18pts
LiveCodeBench 60 42 GPT-4o Mini leads by 18pts
HumanEval 78 62 GPT-4o Mini leads by 16pts
BigCodeBench 44 26 GPT-4o Mini leads by 18pts

Cost Comparison by Scenario

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

ScenarioGPT-4o miniReka FlashSavings
Small Script (1K lines) $0.02 $0.03 GPT-4o mini saves <$0.01 (21%)
Medium Feature (10K lines) $0.18 $0.23 GPT-4o mini saves $0.05 (20%)
Large Project (50K lines) $0.92 $1.15 GPT-4o mini saves $0.23 (20%)
Code Review (5K lines) $0.05 $0.06 GPT-4o mini saves <$0.01 (15%)

Value Analysis (Price per Benchmark Score Point)

Lower is better — how much you pay for each point of benchmark performance.

ModelOverall ScorePrice per Score PointVerdict
GPT-4o mini 58 $0.003/pt Better value
Reka Flash 40 $0.025/pt Higher cost per point

GPT-4o mini delivers the best value at $0.003 per score point.

Strengths & Weaknesses

GPT-4o mini

  • + Very cheap
  • + Fast responses
  • - Struggles with multi-step reasoning

Reka Flash

  • + Multimodal
  • + Fast
  • - Basic coding
  • - Niche provider

Verdict

GPT-4o mini wins on both price and performance — $0.150/M input with a benchmark score of 58/100.

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

Compare with Other Models