Compare/Devstral 2 vs gpt-oss-120b (high)

Devstral 2vsgpt-oss-120b (high)

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

Mistral

Devstral 2

Input
$0/M
Output
$0/M
Speed
48 tok/s
TTFT
0.69s
OpenAI

gpt-oss-120b (high)

Input
$0.15/M
Output
$0.6/M
Speed
250 tok/s
TTFT
0.52s

Winner by Category

Cheaper
Devstral 2
Faster (tok/s)
gpt-oss-120b (high)
Lower Latency
gpt-oss-120b (high)
Benchmarks (1-10)
gpt-oss-120b (high)

Pricing Comparison

MetricDevstral 2gpt-oss-120b (high)
Input ($/M tokens)$0$0.15
Output ($/M tokens)$0$0.6
Cost for 1M input + 100K output tokens:
Devstral 2$0.00
gpt-oss-120b (high)$0.21

Speed Comparison

Output Speed (tokens/s) — higher is better
Devstral 2
48 tok/s
gpt-oss-120b (high)
250 tok/s
Time to First Token (seconds) — lower is better
Devstral 2
0.69s
gpt-oss-120b (high)
0.52s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
19.223.8
Coding Index
31.330.4
Math Index
36.793.4
GPQA Diamond
59.4%78.2%
MMLU-Pro
76.2%80.8%
LiveCodeBench
44.8%87.8%
AIME 2025
36.7%93.4%
MATH-500
Humanity's Last Exam
3.6%18.5%
SciCode
33.1%38.9%
IFBench
38.1%69.0%
TerminalBench
18.9%23.5%
Devstral 21 wins
10 winsgpt-oss-120b (high)

Frequently Asked Questions

Which is cheaper, Devstral 2 or gpt-oss-120b (high)?

Devstral 2 is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $0.26/M for gpt-oss-120b (high).

Which model performs better on benchmarks?

gpt-oss-120b (high) wins 10 out of 12 benchmarks compared to 1 for Devstral 2. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

gpt-oss-120b (high) generates tokens faster at 250 tok/s vs 48 tok/s. However, gpt-oss-120b (high) has lower time-to-first-token (0.52s vs 0.69s).

When should I use Devstral 2 vs gpt-oss-120b (high)?

Choose based on your priorities: Devstral 2 for lower cost, gpt-oss-120b (high) for stronger benchmark performance, and gpt-oss-120b (high) for faster generation. For latency-sensitive apps, check the TTFT comparison above.