GPT-5 vs Muse Glimmer-30B
GPT-5 and Muse Glimmer-30B are closely matched at 33.8 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 and Muse Glimmer-30B are closely matched on the overall LLM Stats Score at 33.8 and 34.9.
In the 5 individual benchmarks reported for both models, GPT-5 wins 4; 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 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
- you value its reported benchmark strengths — it wins 4 of 5 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
34 reported for GPT-5 · 25 for Muse Glimmer-30B
GPT-5 outperforms in 4 benchmarks (CharXiv-R, GPQA, Humanity's Last Exam, MMMU-Pro), while Muse Glimmer-30B is better at 1 benchmark (SWE-Bench Verified).
GPT-5 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 ($1.25/1M tokens) is 4.2x more expensive than Muse Glimmer-30B ($0.30/1M tokens).
For output processing, GPT-5 ($10.00/1M tokens) is 8.3x more expensive than Muse Glimmer-30B ($1.20/1M tokens).
In conclusion, GPT-5 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 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 is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-5 and Muse Glimmer-30B support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5
Muse Glimmer-30B
License
Usage and distribution terms
GPT-5 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 was released on 2025-08-07, while Muse Glimmer-30B was released on 2026-08-10.
Muse Glimmer-30B is 12 months newer than GPT-5.
Aug 7, 2025
1.1 years ago
Aug 10, 2026
1 months ago
1.0yr newerKnowledge Cutoff
When training data ends
GPT-5 has a knowledge cutoff of 2024-09-30, while Muse Glimmer-30B has a cutoff of 2026-01-04.
Muse Glimmer-30B has more recent training data (up to 2026-01-04), making it potentially better informed about events through that date compared to GPT-5 (2024-09-30).
Sep 2024
Jan 2026
1.3 yr newerProvider Availability
GPT-5 is available from OpenAI. Muse Glimmer-30B is available from DeepInfra.
GPT-5
Muse Glimmer-30B
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5 and Muse Glimmer-30B side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5 vs Muse Glimmer-30B.