OpenAI GPT Oss 120B vs OpenAI GPT Oss 20B
OpenAI GPT Oss 120B vs OpenAI GPT Oss 20B: OpenAI GPT Oss 120B is cheaper by 33% on average. OpenAI GPT Oss 120B from Novita AI (131,072-token context, reasoning, tool calls) vs. OpenAI GPT Oss 20B from Groq (131,072-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.
Side-by-side cost
Live workload comparison
Same workload run through both models. The cheaper one is highlighted.
3,000
0131,072
400
032,768
5,000
01,000,000
At this workload, OpenAI GPT Oss 120B is 28% cheaper than OpenAI GPT Oss 20B — a savings of $14.46/month ($173/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: openai-gpt-oss-120b
provider: novita-ai
fallback:
model: openai-gpt-oss-20b
provider: groq
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| OpenAI GPT Oss 120B | OpenAI GPT Oss 20B | |
|---|---|---|
| Input price | $0.0500/M | $0.0750/M |
| Output price | $0.250/M | $0.300/M |
| Context window | 131,072 | 131,072 |
| Max output | 32,768 | 32,768 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | — |
| Audio input | — | — |
| Reasoning | ✓ | ✓ |
| Prompt caching | — | — |
| Structured output | ✓ | ✓ |
| Pricing verified | May 12, 2026 | May 12, 2026 |