GPT-5.6 Terra
The balanced everyday tier of the GPT-5.6 family, GA 9 Jul 2026. On 30 Jul 2026 OpenAI cut Terra 20% to $2 input / $12 output per 1M tokens, crediting inference work that reduced end-to-end serving cost by 20% and improved token-generation efficiency by more than 15%. Same 1.05M context as Sol, cache reads at $0.20, Batch API at half rate. This is the tier most production workloads should default to — it lands within a few points of Sol on most evals at 40% of the price.
1M
tokens
128K
tokens
$2
per 1M tokens
$12
per 1M tokens
118
tokens/sec
Jul 2026
2026-07-09
$7.00
per 1M tokens
13.3
quality per $
Capabilities
Benchmarks
Price vs Quality
Context Window in Context
- ▸ GPT-5.6 Terra1.1M
- GPT-5.6 Sol1.1M
- GPT-5.6 Luna1.1M
- Kimi K31.0M
- GPT-4.11M
- Gemini 2.5 Pro1M
- Gemini 2.0 Flash1M
- Llama 4 Maverick1M
Pricing History
Not on our gateway yet
Swfte Connect does not hold a key for GPT-5.6 Terra, so there is nothing to run here. Add your own provider key and call it with the same API as every other model in this directory.
curl https://api.swfte.com/agents/v2/gateway/chat/completions \
-H "Authorization: Bearer $SWFTE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai:gpt-5.6-terra",
"messages": [{"role": "user", "content": "Hello"}]
}'About GPT-5.6 Terra
GPT-5.6 Terra is a balanced AI model by OpenAI, released on July 9, 2026. It supports a context window of 1050K tokens and can generate up to 128K output tokens.
At $2 per million input tokens and $12 per million output tokens, its blended cost of $7.00/1M tokens places it in the premium pricing tier. Its value score of 13.3 reflects the balance of quality and cost.
Using GPT-5.6 Terra with Swfte
Access GPT-5.6 Terra through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try GPT-5.6 Terra in our AI Playground before integrating.