Compare/Step3 VL 10B vs gpt-oss-20B (low)

Step3 VL 10Bvsgpt-oss-20B (low)

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

StepFun

Step3 VL 10B

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

gpt-oss-20B (low)

Input
$0.06/M
Output
$0.2/M
Speed
265 tok/s
TTFT
0.42s

Winner by Category

Cheaper
Step3 VL 10B
Faster (tok/s)
gpt-oss-20B (low)
Lower Latency
Step3 VL 10B
Benchmarks (3-8)
gpt-oss-20B (low)

Pricing Comparison

MetricStep3 VL 10Bgpt-oss-20B (low)
Input ($/M tokens)$0$0.06
Output ($/M tokens)$0$0.2
Cost for 1M input + 100K output tokens:
Step3 VL 10B$0.00
gpt-oss-20B (low)$0.08

Speed Comparison

Output Speed (tokens/s) — higher is better
Step3 VL 10B
gpt-oss-20B (low)
265 tok/s
Time to First Token (seconds) — lower is better
Step3 VL 10B
gpt-oss-20B (low)
0.42s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
15.520.8
Coding Index
13.914.4
Math Index
62.3
GPQA Diamond
69.0%61.1%
MMLU-Pro
71.8%
LiveCodeBench
65.2%
AIME 2025
62.3%
MATH-500
Humanity's Last Exam
10.2%5.1%
SciCode
31.1%34.0%
IFBench
50.2%57.8%
TerminalBench
5.3%4.5%
Step3 VL 10B3 wins
8 winsgpt-oss-20B (low)

Frequently Asked Questions

Which is cheaper, Step3 VL 10B or gpt-oss-20B (low)?

Step3 VL 10B is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $0.10/M for gpt-oss-20B (low).

Which model performs better on benchmarks?

gpt-oss-20B (low) wins 8 out of 12 benchmarks compared to 3 for Step3 VL 10B. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

gpt-oss-20B (low) generates tokens faster at 265 tok/s vs 0 tok/s. Step3 VL 10B also has lower time-to-first-token (0.00s vs 0.42s).

When should I use Step3 VL 10B vs gpt-oss-20B (low)?

Choose based on your priorities: Step3 VL 10B for lower cost, gpt-oss-20B (low) for stronger benchmark performance, and gpt-oss-20B (low) for faster generation. For latency-sensitive apps, check the TTFT comparison above.