OpenAI · Flagship
GPT 5.6 Terra
openai/gpt-5.6-terra — OpenAI's flagship model, accessible through Leanroute's OpenAI-compatible AI Gateway. Pay provider list price with zero per-request markup; flat $15/mo BYOK subscription covers the platform fee.
Pricing snapshot: August 2026. Re-validated monthly against the upstream OpenAI pricing page.
Pricing
| Type | USD per 1M tokens |
|---|---|
| Input tokens | $2.50 |
| Cached input (90% off) | $0.250 |
| Output tokens | $15.00 |
Leanroute's markup: $0. You pay the provider list price above, plus a flat $15/mo BYOK subscription (or 5% at top-up for prepaid credits). Compare pricing at /calculator.
Capabilities
Example request
curl https://api.leanroute.dev/v1/chat/completions \
-H "Authorization: Bearer $LEANROUTE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/gpt-5.6-terra",
"messages": [
{ "role": "user", "content": "Hello, GPT 5.6 Terra!" }
]
}'OpenAI-wire-compatible — point any OpenAI SDK at api.leanroute.dev/v1 and set model: "openai/gpt-5.6-terra". Full endpoint reference at /docs/api.
Other OpenAI models
- GPT 4o$2.50/$10.00 · Flagship
- GPT 4o Mini$0.150/$0.600 · Cheap + Fast
- GPT O1$15.00/$60.00 · Premium Reasoning
- GPT 5 Nano$0.050/$0.400 · Cheap + Fast
- GPT 5.6 Sol$5.00/$30.00 · Premium Reasoning
- GPT 5.6 Luna$1.00/$6.00 · Cheap + Fast
Same-tier alternatives across providers
- GPT 4o$2.50/$10.00 · OpenAI
- Claude Sonnet 4 6$3.00/$15.00 · Anthropic
- Claude Sonnet 5$2.00/$10.00 · Anthropic
- Gemini 2.5 Pro$1.25/$10.00 · Google
- Gemini 3.5 Flash$1.50/$9.00 · Google
- DeepSeek Chat$0.140/$0.280 · DeepSeek
- DeepSeek V4 Flash$0.140/$0.280 · DeepSeek
- Grok 4$3.00/$7.50 · xAI
Leanroute's router picks the cheapest same-tier model automatically when cheaper-model routing is on. Config at /dashboard/settings.
See also: Full model catalog · API reference · Savings calculator · Leanroute pricing