GPT-OSS 120B vs Gemma-4-31B-it-Pearl
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by Together
3 providers:
Fireworks $0.150/$0.600
Groq $0.150/$0.600
Together $0.150/$0.600
|
by Together
|
|---|---|---|
| Overview | ||
| Status | Current budget Open weights | Current budget Open weights |
| Released | Jan 1, 2026 | Jan 1, 2026 |
| Pricing per million tokens | ||
| Input | $0.150/Mtok | $0.280/Mtok |
| Output | $0.600/Mtok | $0.860/Mtok |
| Blended avg | $0.262/Mtok | $0.425/Mtok |
| Specifications | ||
| Context window | 128K tokens | 32K tokens |
| Parameters | 120B | 31B |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
text
|
| Benchmarks sources: Vellum LLM Leaderboard / LMSYS Chatbot Arena (UC Berkeley) | ||
| Avg benchmark score | 65.5 | — |
| Perf / dollar | 249.5 | — |
| GPQA Diamond | 80.1 | — |
| LiveCodeBench | 69 | — |
| Humanity's Last Exam | 14.9 | — |
| AIME 2025 | 97.9 | — |
| Independent composite scores each on its own scale — not part of the average above | ||
| AA Intelligence Index | 24.1 | — |
| AA Agentic Index | 13.4 | — |
| AA-Omniscience Index (−100–100) | -49.2 | — |
| LMSYS Chatbot Arena | — | 1451.3 ELO |
| Providers | ||
| Available from |
Fireworks — $0.150/$0.600/Mtok
Groq — $0.150/$0.600/Mtok
Together — $0.150/$0.600/Mtok
|
Together — $0.280/$0.860/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | GPT-OSS 120B | Gemma-4-31B-it-Pearl | Savings |
|---|---|---|---|
| 1M tokens | $0.26 | $0.43 | $0.16 (37.6%) |
| 10M tokens | $2.62 | $4.25 | $1.63 (38.4%) |
| 100M tokens | $26.25 | $42.5 | $16.25 (38.2%) |
| 1000M tokens | $262.5 | $425 | $162.5 (38.2%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $0.262/Mtok blended vs $0.425 — 38.2% less on the same 50/50 token mix
- you need the longer context: 128K tokens vs 32K (4×)
- provider flexibility: available from 3 providers, so you can price-shop hosts or fail over
- this pairing gives Gemma-4-31B-it-Pearl no edge on price, context, cache discount, or measured performance — pick it only for qualitative fit (ecosystem, compliance, model behavior on your prompts)
The cheaper option here — GPT-OSS 120B costs $0.262/Mtok blended on Together.
Summary
GPT-OSS 120B by Together costs $0.150/Mtok input and $0.600/Mtok output, with a 128K-token context window. It supports text input and is available from 3 providers.
Gemma-4-31B-it-Pearl by Together costs $0.280/Mtok input and $0.860/Mtok output, with a 32K-token context window. It supports text input.
On a blended cost basis, GPT-OSS 120B is 38.2% cheaper than Gemma-4-31B-it-Pearl.It also has a larger context window.
The two aren't directly comparable on average benchmark score: GPT-OSS 120B has published per-benchmark results, while Gemma-4-31B-it-Pearl does not yet — it is measured today on independent composites (see the table above).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.