Self-hosting and data control
Choose Muse Glimmer
Muse Glimmer has open weights, so you can run it on your own servers; GPT-5.6 Cyber is only available through its provider.
GPT-5.6 Cyber vs Muse Glimmer: price, context and capabilities
Choose GPT-5.6 Cyber for images as input. Choose Muse Glimmer for self-hosting and data control and the latest release.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Only GPT-5.6 Cyber offers vision, reasoning, tool calling, structured output, batch api.
- Only Muse Glimmer offers self-hostable.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Images as input
Choose GPT-5.6 Cyber
GPT-5.6 Cyber accepts images as input; Muse Glimmer does not.
Latest release
Choose Muse Glimmer
Muse Glimmer is the newer release (Aug 10, 2026, against Aug 7, 2026 for GPT-5.6 Cyber).
Specifications side by side
| GPT-5.6 Cyber | Muse Glimmer | |
|---|---|---|
| Provider | OpenAI | Meta |
| Category | Language models | Language models |
| Status | Generally available · Limited access | Generally available |
| Headline price | No data | No data |
| Input | No data | No data |
| Output | No data | No data |
| Cached input | No data | No data |
| Context window | 400k | No data |
| Max output | 128k | No data |
| Released | Aug 7, 2026 | Aug 10, 2026 |
| Knowledge cutoff | February 2026 | No data |
| Licence | Proprietary | Open weights |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Batch API | Self-hostable |
| API model id | gpt-5.6-cyber |
Benchmarks side by side
Leader in bold.
| Benchmark | GPT-5.6 Cyber | Muse Glimmer |
|---|---|---|
| Intelligence Index | No data | 17.5 |
| SciCode | No data | 44.9% |
| GPQA Diamond | No data | 83.5% |
| Humanity's Last Exam | No data | 22% |
| MMMU-Pro (visual reasoning) | No data | 74.3% |
| Long-context reasoning (AA-LCR) | No data | 83.3% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose GPT-5.6 Cyber or Muse Glimmer?
Choose GPT-5.6 Cyber for images as input. Choose Muse Glimmer for self-hosting and data control and the latest release.
Which is cheaper, GPT-5.6 Cyber or Muse Glimmer?
A price comparison is not possible: one of them has no comparable published price.
What is the difference between GPT-5.6 Cyber and Muse Glimmer?
GPT-5.6 Cyber is made by OpenAI and Muse Glimmer by Meta. A price comparison is not possible: one of them has no comparable published price. Only GPT-5.6 Cyber offers vision, reasoning, tool calling, structured output, batch api. Only Muse Glimmer offers self-hostable.
Which is newer, GPT-5.6 Cyber or Muse Glimmer?
Muse Glimmer was released on Aug 10, 2026 and GPT-5.6 Cyber on Aug 7, 2026.