Compare/Olmo 3 7B Instruct vs gpt-oss-20B (low)

Olmo 3 7B Instructvsgpt-oss-20B (low)

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

Allen Institute for AI

Olmo 3 7B Instruct

Input
$0.1/M
Output
$0.2/M
Speed
TTFT
OpenAI

gpt-oss-20B (low)

Input
$0.06/M
Output
$0.2/M
Speed
321 tok/s
TTFT
0.46s

Winner by Category

Cheaper
gpt-oss-20B (low)
Faster (tok/s)
gpt-oss-20B (low)
Lower Latency
Olmo 3 7B Instruct
Benchmarks (1-10)
gpt-oss-20B (low)

Pricing Comparison

MetricOlmo 3 7B Instructgpt-oss-20B (low)
Input ($/M tokens)$0.1$0.06
Output ($/M tokens)$0.2$0.2
Cost for 1M input + 100K output tokens:
Olmo 3 7B Instruct$0.12
gpt-oss-20B (low)$0.08

Speed Comparison

Output Speed (tokens/s) — higher is better
Olmo 3 7B Instruct
gpt-oss-20B (low)
321 tok/s
Time to First Token (seconds) — lower is better
Olmo 3 7B Instruct
gpt-oss-20B (low)
0.46s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
8.220.8
Coding Index
3.414.4
Math Index
41.362.3
GPQA Diamond
40.0%61.1%
MMLU-Pro
52.2%71.8%
LiveCodeBench
26.6%65.2%
AIME 2025
41.3%62.3%
MATH-500
Humanity's Last Exam
5.8%5.1%
SciCode
10.3%34.0%
IFBench
32.8%57.8%
TerminalBench
0.0%4.5%
Olmo 3 7B Instruct1 wins
10 winsgpt-oss-20B (low)

Frequently Asked Questions

Which is cheaper, Olmo 3 7B Instruct or gpt-oss-20B (low)?

gpt-oss-20B (low) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.09/M tokens vs $0.13/M for Olmo 3 7B Instruct.

Which model performs better on benchmarks?

gpt-oss-20B (low) wins 10 out of 12 benchmarks compared to 1 for Olmo 3 7B Instruct. 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 321 tok/s vs 0 tok/s. Olmo 3 7B Instruct also has lower time-to-first-token (0.00s vs 0.46s).

When should I use Olmo 3 7B Instruct vs gpt-oss-20B (low)?

Choose based on your priorities: gpt-oss-20B (low) 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.