GPT-5.6 Terra vs Muse Glimmer-30B
GPT-5.6 Terra leads the LLM Stats Score 50.8 to 35.0. Muse Glimmer-30B is 8.6x cheaper per token.
OpenAI · Meta · Updated for 2026
Which is better?
GPT-5.6 Terra leads the overall LLM Stats Score 50.8 to 35.0, ranking #16 overall.
In the 4 individual benchmarks reported for both models, GPT-5.6 Terra wins 4; this is a narrower head-to-head signal than the composite indexes.
On price, Muse Glimmer-30B is roughly 8.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-5.6 Terra also accepts a larger context window (1,050,000 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-5.6 Terra
- overall performance matters — it scores 50.8 and ranks #16 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 4 of 4 exact shared results
- you process long inputs — it offers a 1,050,000 token context window
Choose Muse Glimmer-30B
- cost matters — it's about 8.6x 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
45 reported for GPT-5.6 Terra · 25 for Muse Glimmer-30B
GPT-5.6 Terra outperforms in 4 benchmarks (GPQA, MMMU-Pro, SWE-Bench Pro, Terminal-Bench 2.1), while Muse Glimmer-30B is better at 0 benchmarks.
GPT-5.6 Terra 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-5.6 Terra ($2.00/1M tokens) is 6.7x more expensive than Muse Glimmer-30B ($0.30/1M tokens).
For output processing, GPT-5.6 Terra ($12.00/1M tokens) is 10.0x more expensive than Muse Glimmer-30B ($1.20/1M tokens).
In conclusion, GPT-5.6 Terra 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-5.6 Terra accepts 1,050,000 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-5.6 Terra is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-5.6 Terra and Muse Glimmer-30B support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.6 Terra
Muse Glimmer-30B
License
Usage and distribution terms
GPT-5.6 Terra 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-5.6 Terra was released on 2026-07-09, while Muse Glimmer-30B was released on 2026-08-10.
Muse Glimmer-30B is 1 month newer than GPT-5.6 Terra.
Jul 9, 2026
2 months ago
Aug 10, 2026
1 months ago
1mo newerKnowledge Cutoff
When training data ends
GPT-5.6 Terra has a knowledge cutoff of 2026-02-16, while Muse Glimmer-30B has a cutoff of 2026-01-04.
GPT-5.6 Terra has more recent training data (up to 2026-02-16), making it potentially better informed about events through that date compared to Muse Glimmer-30B (2026-01-04).
Feb 2026
1 mo newerJan 2026
Provider Availability
GPT-5.6 Terra is available from OpenAI. Muse Glimmer-30B is available from DeepInfra.
GPT-5.6 Terra
Muse Glimmer-30B
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.6 Terra and Muse Glimmer-30B side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.6 Terra vs Muse Glimmer-30B.