GPT-5.1 Thinking vs Muse Glimmer-30B
GPT-5.1 Thinking and Muse Glimmer-30B are closely matched at 36.6 and 34.9 on the LLM Stats Score. Muse Glimmer-30B is 6.5x cheaper per token.
OpenAI · Meta · Updated for 2026
Which is better?
GPT-5.1 Thinking and Muse Glimmer-30B are closely matched on the overall LLM Stats Score at 36.6 and 34.9.
In the 2 individual benchmarks reported for both models, GPT-5.1 Thinking wins 2; this is a narrower head-to-head signal than the composite indexes.
On price, Muse Glimmer-30B is roughly 6.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-5.1 Thinking also accepts a larger context window (400,000 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-5.1 Thinking
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you process long inputs — it offers a 400,000 token context window
Choose Muse Glimmer-30B
- cost matters — it's about 6.5x cheaper per token
- you want the most recent training data — it shipped Aug 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for GPT-5.1 Thinking · 25 for Muse Glimmer-30B
GPT-5.1 Thinking outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while Muse Glimmer-30B is better at 0 benchmarks.
GPT-5.1 Thinking significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5.1 Thinking ($1.25/1M tokens) is 4.2x more expensive than Muse Glimmer-30B ($0.30/1M tokens).
For output processing, GPT-5.1 Thinking ($10.00/1M tokens) is 8.3x more expensive than Muse Glimmer-30B ($1.20/1M tokens).
In conclusion, GPT-5.1 Thinking is more expensive than Muse Glimmer-30B.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5.1 Thinking accepts 400,000 input tokens compared to Muse Glimmer-30B's 131,072 tokens. Muse Glimmer-30B can generate longer responses up to 131,072 tokens, while GPT-5.1 Thinking is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-5.1 Thinking and Muse Glimmer-30B support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.1 Thinking
Muse Glimmer-30B
License
Usage and distribution terms
GPT-5.1 Thinking is licensed under a proprietary license, while Muse Glimmer-30B uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
GPT-5.1 Thinking was released on 2025-11-12, while Muse Glimmer-30B was released on 2026-08-10.
Muse Glimmer-30B is 9 months newer than GPT-5.1 Thinking.
Nov 12, 2025
10 months ago
Aug 10, 2026
1 months ago
9mo newerKnowledge Cutoff
When training data ends
Muse Glimmer-30B has a documented knowledge cutoff of 2026-01-04, while GPT-5.1 Thinking's cutoff date is not specified.
We can confirm Muse Glimmer-30B's training data extends to 2026-01-04, but cannot make a direct comparison without GPT-5.1 Thinking's cutoff date.
—
Jan 2026
Provider Availability
GPT-5.1 Thinking is available from OpenAI. Muse Glimmer-30B is available from DeepInfra.
GPT-5.1 Thinking
Muse Glimmer-30B
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.1 Thinking and Muse Glimmer-30B side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.1 Thinking vs Muse Glimmer-30B.