GPT OSS 120B vs Grok 4.7
Grok 4.7 leads the LLM Stats Score 48.5 to 28.8. GPT OSS 120B is 42.7x cheaper per token.
OpenAI · xAI · Updated for 2026
Which is better?
Grok 4.7 leads the overall LLM Stats Score 48.5 to 28.8, ranking #22 overall.
On price, GPT OSS 120B is roughly 42.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok 4.7 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT OSS 120B
- cost matters — it's about 42.7x cheaper per token
- you need open weights you can self-host or fine-tune
Choose Grok 4.7
- overall performance matters — it scores 48.5 and ranks #22 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you process long inputs — it offers a 500,000 token context window
- you want the most recent training data — it shipped Sep 2026
At a glance
The differences that matter most.
Individual benchmarks
7 reported for GPT OSS 120B · 23 for Grok 4.7
GPT OSS 120B and Grok 4.7don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT OSS 120B ($0.04/1M tokens) is 54.1x cheaper than Grok 4.7 ($2.00/1M tokens).
For output processing, GPT OSS 120B ($0.17/1M tokens) is 35.3x cheaper than Grok 4.7 ($6.00/1M tokens).
In conclusion, Grok 4.7 is more expensive than GPT OSS 120B.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok 4.7 accepts 500,000 input tokens compared to GPT OSS 120B's 131,072 tokens. Only GPT OSS 120B specifies output context (131,072 tokens).
Input capabilities
Documented input modalities across available providers
Grok 4.7 supports multimodal inputs, whereas GPT OSS 120B does not.
Grok 4.7 can handle both text and other forms of data like images, making it suitable for multimodal applications.
GPT OSS 120B
Grok 4.7
License
Usage and distribution terms
GPT OSS 120B is licensed under Apache 2.0, while Grok 4.7 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
GPT OSS 120B was released on 2025-08-05, while Grok 4.7 was released on 2026-09-21.
Grok 4.7 is 14 months newer than GPT OSS 120B.
Aug 5, 2025
1.1 years ago
Sep 21, 2026
0 days ago
1.1yr newerKnowledge Cutoff
When training data ends
Grok 4.7 has a documented knowledge cutoff of 2026-05-01, while GPT OSS 120B's cutoff date is not specified.
We can confirm Grok 4.7's training data extends to 2026-05-01, but cannot make a direct comparison without GPT OSS 120B's cutoff date.
—
May 2026
Provider Availability
GPT OSS 120B is available from DeepInfra, Novita, OpenAI, Fireworks, Groq. Grok 4.7 is available from xAI.
GPT OSS 120B
Grok 4.7
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT OSS 120B and Grok 4.7 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT OSS 120B vs Grok 4.7.