text model comparison
GPT-5.5 vs Muse Wonder
GPT-5.5 and Muse Wonder are both current text models, from OpenAI and Meta. Muse Wonder is 20% cheaper per 1M input tokens than GPT-5.5, $4 vs $5. Both accept about 1.05M tokens of context (1,050,000 and 1,048,576).
Data verified October 13, 2026 · Dataset 2026-10-13
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | GPT-5.5 | Muse Wonder |
|---|---|---|
| Price per 1M input tokens | $5 | $4 (better) |
| Price per 1M output tokens | $30 | $20 (better) |
| Cost of 10M input and 2M output tokens | $110 | $80 (better) |
| Arena Text | 1482 Elo (#14 of 49) | Not measured |
| GPQA Diamond | 90.7% (#23 of 40) | Not measured |
| FrontierMath Tiers 1-3 (v2) | 85.3% (#11 of 40) | Not measured |
| SimpleQA Verified | 63% (#13 of 36) | Not measured |
| LiveBench Overall | 79.91 points (#1 of 5) | Not measured |
| Provider | OpenAI | Meta |
| Release date | April 23, 2026 | October 12, 2026 |
| Access | API only | API only |
| Context window | 1,050,000 tokens | 1,048,576 tokens |
| Max output | 128,000 tokens | Not reported |
| Input | text, image | text, image, audio, video |
| Output | text | text |
Scores:Arena · 2026-10-12Epoch AI · 2026-10-12LiveBench · 2026-06-25
When to choose each
GPT-5.5
Best for
- High-capability API evaluations with long context
Watch out for
- Prompts above the provider long-context threshold use higher token rates; validate the selected reasoning effort against production cost
Muse Wonder
Best for
- Multi-file coding changes and multi-hour agent runs
- Sub-agent orchestration where capability matters more than cost
Watch out for
- Meta lists it as a preview, and the Model API serves Standard mode only, with no discounted Contributor tier
- The higher-capability Muse Wonder Full is only available through Muse Code subscriptions, not per token
- Released after the latest Arena and Epoch AI snapshots, so no independent score is recorded yet
GPT-5.5 vs Muse Wonder FAQ
Which is cheaper, GPT-5.5 or Muse Wonder?
Muse Wonder is 20% cheaper per 1M input tokens than GPT-5.5, $4 vs $5. For 10M input and 2M output tokens, GPT-5.5 costs $110 and Muse Wonder $80 at standard rates.
Which has the larger context window, GPT-5.5 or Muse Wonder?
Both accept about 1.05M tokens of context (1,050,000 and 1,048,576).
Related comparisons
Production evaluation
Choosing between GPT-5.5 and Muse Wonder?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty