Compare/Step 3.5 Flash 2603 vs Grok-1

Step 3.5 Flash 2603vsGrok-1

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

StepFun

Step 3.5 Flash 2603

Input
$0/M
Output
$0/M
Speed
187 tok/s
TTFT
0.87s
xAI

Grok-1

Input
$0/M
Output
$0/M
Speed
TTFT

Winner by Category

Cheaper
Tie
Faster (tok/s)
Step 3.5 Flash 2603
Lower Latency
Grok-1
Benchmarks (7-0)
Step 3.5 Flash 2603

Pricing Comparison

MetricStep 3.5 Flash 2603Grok-1
Input ($/M tokens)$0$0
Output ($/M tokens)$0$0
Cost for 1M input + 100K output tokens:
Step 3.5 Flash 2603$0.00
Grok-1$0.00

Speed Comparison

Output Speed (tokens/s) — higher is better
Step 3.5 Flash 2603
187 tok/s
Grok-1
Time to First Token (seconds) — lower is better
Step 3.5 Flash 2603
0.87s
Grok-1

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
38.511.7
Coding Index
34.6
Math Index
GPQA Diamond
82.6%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
22.6%
SciCode
38.5%
IFBench
66.5%
TerminalBench
32.6%
Step 3.5 Flash 26037 wins
0 winsGrok-1

Frequently Asked Questions

Which is cheaper, Step 3.5 Flash 2603 or Grok-1?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

Step 3.5 Flash 2603 wins 7 out of 12 benchmarks compared to 0 for Grok-1. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Step 3.5 Flash 2603 generates tokens faster at 187 tok/s vs 0 tok/s. However, Grok-1 has lower time-to-first-token (0.00s vs 0.87s).

When should I use Step 3.5 Flash 2603 vs Grok-1?

Choose based on your priorities: both are similarly priced, Step 3.5 Flash 2603 for stronger benchmark performance, and Step 3.5 Flash 2603 for faster generation. For latency-sensitive apps, check the TTFT comparison above.