Grok 4 vs Reka Flash 3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Reka Flash 3 by Reka AI wins on 3 of 5 benchmarks against Grok 4 by xAI, which leads on 1. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
Context: In context, Grok 4 scores 256K on Context Length compared to Reka Flash 3's 128K.
Pricing Comparison
Grok 4 costs $3.0/1M input tokens and $15.0/1M output tokens, while Reka Flash 3 costs $0.20/1M input and $0.80/1M output. Reka Flash 3 is the more affordable option for API usage.
Speed Comparison
Grok 4 generates output at 55 tok/s compared to Reka Flash 3's 136 tok/s, and the time to first token is 500 ms for Grok 4 versus 500 ms for Reka Flash 3. Reka Flash 3 delivers faster throughput.
Verdict
Reka Flash 3 leads across the board in affordability, speed, making it the stronger overall choice in this comparison.
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Grok 4 vs Reka Flash 3 — FAQ
Which is better, Grok 4 or Reka Flash 3?
Reka Flash 3 wins on more benchmarks overall (3 vs 1). However, the best choice depends on your specific needs — each model excels in different areas.
How does Grok 4 compare to Reka Flash 3 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Grok 4 cheaper than Reka Flash 3?
Yes, Reka Flash 3 is cheaper. Grok 4 costs $3.0/1M input and $15.0/1M output tokens. Reka Flash 3 costs $0.20/1M input and $0.80/1M output tokens.
Which is faster, Grok 4 or Reka Flash 3?
Reka Flash 3 is faster, generating output at 136 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Grok 4 vs Reka Flash 3 comparison cover?
This comparison covers 5 benchmarks including Output Speed, Time to First Token, Input Cost, Output Cost, Context Length. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.