Compare/Llama 3.1 Instruct 70B vs gpt-oss-120B (low)

Llama 3.1 Instruct 70Bvsgpt-oss-120B (low)

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

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Llama 3.1 Instruct 70B

Input
$0.56/M
Output
$0.56/M
Speed
31 tok/s
TTFT
0.55s
OpenAI

gpt-oss-120B (low)

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

Winner by Category

Cheaper
gpt-oss-120B (low)
Faster (tok/s)
gpt-oss-120B (low)
Lower Latency
gpt-oss-120B (low)
Benchmarks (1-11)
gpt-oss-120B (low)

Pricing Comparison

MetricLlama 3.1 Instruct 70Bgpt-oss-120B (low)
Input ($/M tokens)$0.56$0.15
Output ($/M tokens)$0.56$0.6
Cost for 1M input + 100K output tokens:
Llama 3.1 Instruct 70B$0.62
gpt-oss-120B (low)$0.21

Speed Comparison

Output Speed (tokens/s) — higher is better
Llama 3.1 Instruct 70B
31 tok/s
gpt-oss-120B (low)
255 tok/s
Time to First Token (seconds) — lower is better
Llama 3.1 Instruct 70B
0.55s
gpt-oss-120B (low)
0.51s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
12.524.5
Coding Index
10.915.5
Math Index
4.066.7
GPQA Diamond
40.9%67.2%
MMLU-Pro
67.6%77.5%
LiveCodeBench
23.2%70.7%
AIME 2025
4.0%66.7%
MATH-500
64.9%
Humanity's Last Exam
4.6%5.2%
SciCode
26.7%36.0%
IFBench
34.4%58.3%
TerminalBench
3.0%5.3%
Llama 3.1 Instruct 70B1 wins
11 winsgpt-oss-120B (low)

Frequently Asked Questions

Which is cheaper, Llama 3.1 Instruct 70B or gpt-oss-120B (low)?

gpt-oss-120B (low) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.26/M tokens vs $0.56/M for Llama 3.1 Instruct 70B.

Which model performs better on benchmarks?

gpt-oss-120B (low) wins 11 out of 12 benchmarks compared to 1 for Llama 3.1 Instruct 70B. 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 31 tok/s. However, gpt-oss-120B (low) has lower time-to-first-token (0.51s vs 0.55s).

When should I use Llama 3.1 Instruct 70B vs gpt-oss-120B (low)?

Choose based on your priorities: gpt-oss-120B (low) for lower cost, 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.