Compare/Phi-4 Multimodal Instruct vs gpt-oss-20B (high)

Phi-4 Multimodal Instructvsgpt-oss-20B (high)

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

Microsoft

Phi-4 Multimodal Instruct

Input
$0/M
Output
$0/M
Speed
13 tok/s
TTFT
1.26s
OpenAI

gpt-oss-20B (high)

Input
$0.05/M
Output
$0.2/M
Speed
260 tok/s
TTFT
0.40s

Winner by Category

Cheaper
Phi-4 Multimodal Instruct
Faster (tok/s)
gpt-oss-20B (high)
Lower Latency
gpt-oss-20B (high)
Benchmarks (1-11)
gpt-oss-20B (high)

Pricing Comparison

MetricPhi-4 Multimodal Instructgpt-oss-20B (high)
Input ($/M tokens)$0$0.05
Output ($/M tokens)$0$0.2
Cost for 1M input + 100K output tokens:
Phi-4 Multimodal Instruct$0.00
gpt-oss-20B (high)$0.07

Speed Comparison

Output Speed (tokens/s) — higher is better
Phi-4 Multimodal Instruct
13 tok/s
gpt-oss-20B (high)
260 tok/s
Time to First Token (seconds) — lower is better
Phi-4 Multimodal Instruct
1.26s
gpt-oss-20B (high)
0.40s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
10.024.5
Coding Index
18.5
Math Index
89.3
GPQA Diamond
31.5%68.8%
MMLU-Pro
48.5%74.8%
LiveCodeBench
13.1%77.7%
AIME 2025
89.3%
MATH-500
69.3%
Humanity's Last Exam
4.4%9.8%
SciCode
11.0%34.4%
IFBench
65.1%
TerminalBench
10.6%
Phi-4 Multimodal Instruct1 wins
11 winsgpt-oss-20B (high)

Frequently Asked Questions

Which is cheaper, Phi-4 Multimodal Instruct or gpt-oss-20B (high)?

Phi-4 Multimodal Instruct is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $0.09/M for gpt-oss-20B (high).

Which model performs better on benchmarks?

gpt-oss-20B (high) wins 11 out of 12 benchmarks compared to 1 for Phi-4 Multimodal Instruct. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

gpt-oss-20B (high) generates tokens faster at 260 tok/s vs 13 tok/s. However, gpt-oss-20B (high) has lower time-to-first-token (0.40s vs 1.26s).

When should I use Phi-4 Multimodal Instruct vs gpt-oss-20B (high)?

Choose based on your priorities: Phi-4 Multimodal Instruct for lower cost, gpt-oss-20B (high) for stronger benchmark performance, and gpt-oss-20B (high) for faster generation. For latency-sensitive apps, check the TTFT comparison above.