OpenAI · Workhorse
GPT-5.6 Terra
The mid tier of the GPT-5.6 family: OpenAI's general-purpose workhorse and the closest direct competitor to Claude Sonnet 5 and Gemini 3.1 Pro on price.
What that means
A worked example
Per-token pricing is hard to feel. Take a moderately chatty production workload: 100 calls a day, roughly 10,000 tokens in and 2,000 out each time. On GPT-5.6 Terra that comes to about:
$132 / month
Before caching, batching or volume discounts, all of which move this number a long way. Illustrative only.
Strong at
- -Balanced cost and capability
- -General production use
Typical use
- -Production applications
- -Content generation
- -Assistants
Same tier
What else to look at
| Model | Developer | Context | In / 1M | Out / 1M |
|---|---|---|---|---|
| Claude Sonnet 5 | Anthropic | 1M | $3 | $15 |
| Claude Sonnet 4.6 | Anthropic | 1M | $3 | $15 |
| GPT-5.4 | OpenAI | - | $2.50 | $15 |
| Gemini 3.6 Flash | 1M | $1.50 | $7.50 | |
| Grok 4.20 | xAI | - | $1.25 | $2.50 |
Verified 2026-08-07.