OpenAI o1 Pro vs Reka Flash

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o1 Pro

OpenAI

Premium reasoning model with extended compute. Best-in-class for complex math, science, and advanced coding challenges.

Input$20.00/M
Output$80.00/M
Context200K tokens
Best ForResearch-grade problem solving, competition math, complex system design

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

Cost Comparison by Scenario

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

ScenarioOpenAI o1 ProReka FlashSavings
Small Script (1K lines) $3.10 $0.03 Reka Flash saves $3.07 (99%)
Medium Feature (10K lines) $23.00 $0.23 Reka Flash saves $22.77 (99%)
Large Project (50K lines) $115.00 $1.15 Reka Flash saves $113.85 (99%)
Code Review (5K lines) $5.50 $0.06 Reka Flash saves $5.45 (99%)

Verdict

Reka Flash wins on both price and performance — $0.200/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