token.app › Compare › Phi 4 vs gpt-oss-120b
Phi 4 vs gpt-oss-120b
gpt-oss-120b leads on 2 of 2 shared benchmarks. gpt-oss-120b is 1.2× cheaper per token on a blended 3:1 basis. gpt-oss-120b accepts the larger context window (131K).
Head to head
Blended price uses a 3:1 input:output mix
| Phi 4 | gpt-oss-120b | |
|---|---|---|
| Provider | Microsoft | OpenAI |
| Input $/1M | $0.070 | $0.037 |
| Output $/1M | $0.140 | $0.170 |
| Blended $/1M | $0.088 | $0.070 |
| Context window | 16K | 131K |
| Max output | 16K | 131K |
| Released | Jan 2025 | Aug 2025 |
| Licence | Open weights | Open weights |
| GPQA Diamond | 56.1% | 75.8% |
| OTIS Mock AIME | 13.8% | 88.9% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Phi 4 if…
- No clear advantage on the data we hold.
Choose gpt-oss-120b if…
- Costs less per token — $0.070 vs $0.088 blended
- Higher GPQA Diamond (75.8% vs 56.1%)
- Higher OTIS Mock AIME (88.9% vs 13.8%)
- Larger context window (131K)
- Newer model (released Aug 2025)
FAQ
Which is better, Phi 4 or gpt-oss-120b?
Across the 2 benchmarks both models have independently-run scores for, Phi 4 leads on 0 and gpt-oss-120b leads on 2. Benchmarks are one input — price and context window are on this page too.
Is Phi 4 cheaper than gpt-oss-120b?
gpt-oss-120b is cheaper: $0.070 versus $0.088 per million tokens blended at 3:1 input:output. Input alone: $0.070 vs $0.037. Output alone: $0.140 vs $0.170.
What context windows do Phi 4 and gpt-oss-120b have?
Phi 4: 16,384 tokens. gpt-oss-120b: 131,072 tokens.
Who makes Phi 4 and gpt-oss-120b?
Phi 4 is made by Microsoft. gpt-oss-120b is made by OpenAI.