GPT-5.6 Terra
workstation
Efficient proprietary dense model from OpenAI, the mid-tier sibling of GPT-5.6 Sol. Same 1,050,000-token context and 128K max output as Sol. Text + image in, text out. Reasoning effort spans none through max; medium is default.
-
Pricing: $2/1M input, $12/1M output.
Agents on Rails benchmark (Aug 2026, Le Mans round). 77.8% accuracy on 63 runs - 49 of 63, at $0.197 mean cost and a 3m 02s median, the fastest in the entire 16-model field. OpenAI’s three models (Sol 84.1%, Terra 77.8%, Luna 73%) score in exactly price order, all in the fastest third. Terra is the “20 cents a run” sweet spot: near-frontier accuracy at a fraction of the flagship’s cost.
AI-generated content marks
The provider reports that this model does not add embedded watermarks or provenance metadata to generated output.
Provider transparency docs →
coding
reasoning
agentic
- Context
- 1050k
- License
- proprietary
- Origin
-
🇺🇸
USA
- Released
- Aug 2026
Or run it in the cloud
Live per-provider pricing, throughput and uptime - refreshed 2 months ago via OpenRouter. Click a column to sort.
some pricing may be stale - last verified 2026-08-15
|
Provider
|
Type
|
Input $/M
|
Output $/M
|
Cache $/M
|
Tok/s
|
Latency
|
Uptime
|
Value
|
|
|
API
|
2.00 |
12.00 |
- |
- |
- |
- |
cheapest
|
|
|
API
|
2.00 |
12.00 |
0.200 |
- |
- |
- |
|
Default order: throughput among 95%+ uptime providers, then latency; subscriptions last. Sort by any column. Subscription rows show $/mo in the Value column - per-token columns are "-". Affiliate links are marked sponsored / nofollow. Confirm current pricing on the provider's site before committing.
PRICE HISTORY
Inference cost over time
Data accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.
Loading price history...