Compare/gpt-oss-120B (low) vs Mistral Small 4 (Non-reasoning)

gpt-oss-120B (low)vsMistral Small 4 (Non-reasoning)

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

OpenAI

gpt-oss-120B (low)

Input
$0.15/M
Output
$0.6/M
Speed
255 tok/s
TTFT
0.51s
Mistral

Mistral Small 4 (Non-reasoning)

Input
$0.15/M
Output
$0.6/M
Speed
159 tok/s
TTFT
0.41s

Winner by Category

Cheaper
Tie
Faster (tok/s)
gpt-oss-120B (low)
Lower Latency
Mistral Small 4 (Non-reasoning)
Benchmarks (9-2)
gpt-oss-120B (low)

Pricing Comparison

Metricgpt-oss-120B (low)Mistral Small 4 (Non-reasoning)
Input ($/M tokens)$0.15$0.15
Output ($/M tokens)$0.6$0.6
Cost for 1M input + 100K output tokens:
gpt-oss-120B (low)$0.21
Mistral Small 4 (Non-reasoning)$0.21

Speed Comparison

Output Speed (tokens/s) — higher is better
gpt-oss-120B (low)
255 tok/s
Mistral Small 4 (Non-reasoning)
159 tok/s
Time to First Token (seconds) — lower is better
gpt-oss-120B (low)
0.51s
Mistral Small 4 (Non-reasoning)
0.41s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
24.518.6
Coding Index
15.516.4
Math Index
66.7
GPQA Diamond
67.2%57.1%
MMLU-Pro
77.5%
LiveCodeBench
70.7%
AIME 2025
66.7%
MATH-500
Humanity's Last Exam
5.2%3.7%
SciCode
36.0%28.1%
IFBench
58.3%32.8%
TerminalBench
5.3%10.6%
gpt-oss-120B (low)9 wins
2 winsMistral Small 4 (Non-reasoning)

Frequently Asked Questions

Which is cheaper, gpt-oss-120B (low) or Mistral Small 4 (Non-reasoning)?

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

Which model performs better on benchmarks?

gpt-oss-120B (low) wins 9 out of 12 benchmarks compared to 2 for Mistral Small 4 (Non-reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

gpt-oss-120B (low) generates tokens faster at 255 tok/s vs 159 tok/s. However, Mistral Small 4 (Non-reasoning) has lower time-to-first-token (0.41s vs 0.51s).

When should I use gpt-oss-120B (low) vs Mistral Small 4 (Non-reasoning)?

Choose based on your priorities: both are similarly priced, gpt-oss-120B (low) for stronger benchmark performance, and gpt-oss-120B (low) for faster generation. For latency-sensitive apps, check the TTFT comparison above.