GPT-5.6 Terra Paid vs GPT Audio Paid
GPT-5.6 Terra vs GPT Audio compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT-5.6 Terra — full profile › · GPT Audio — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$12 /M outputManaged API (no infra to run)
$10 /M outputManaged API (no infra to run)
GPT-5.6 Terra vs GPT Audio specs
| Spec | GPT-5.6 Terra | GPT Audio | Winner |
|---|---|---|---|
| Maker | OpenAI | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1.1M tokens | 128K tokens | |
| Input price | $2/M | $2.5/M | |
| Output price | $12/M | $10/M | |
| Vision / multimodal | Yes | No | |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
- You want frontier performance through a managed API
- You need the longer 1.1M context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | GPT-5.6 Terra | GPT Audio |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: GPT-5.6 Terra vs GPT Audio
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How GPT-5.6 Terra and GPT Audio score
| Criterion | GPT-5.6 Terra | GPT Audio |
|---|---|---|
| Cost-efficiency | 3.5 | 3.5 |
| Context window | 5.0 | 3.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 3.5 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
GPT-5.6 Terra Paid
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
GPT Audio Paid
The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...
Frequently asked questions
GPT-5.6 Terra vs GPT Audio — which is cheaper?
GPT Audio is cheaper on output ($10/M vs $12/M).
Which has the larger context window?
GPT-5.6 Terra offers the larger context window (1.1M tokens).
GPT-5.6 Terra vs GPT Audio — which should I pick in 2026?
Choose GPT Audio for the lower output price ($10/M vs $12/M). Choose GPT-5.6 Terra if you need the larger 1.1M context window.
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