GPT-5.6 Terra OpenAI released GPT-5.6 Terra, a proprietary AI model available in August 2026, which does not embed watermarks or provenance metadata in generated output. The model scores 90 on general performance and offers a value of 45 points per dollar per million input tokens, with API pricing at $2.00 per million input tokens and $12.00 per million output tokens. GPT-5.6 Terra workstationAI-generated content marks The provider reports that this model does not add embedded watermarks or provenance metadata to generated output. - 1050k - proprietary - Aug 2026 Scores Score per dollar 45 pts per $/M input general score 90 divided by cheapest input price $2.00/M . Higher is better value. See live pricing /models/gpt-5-6-terra/pricing . Or run it in the cloud Live per-provider pricing, throughput and uptime - refreshed about 14 hours ago via OpenRouter. Click a column to sort. | Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value | |---|---|---|---|---|---|---|---|---| | API | 2.00 | 12.00 | - | - | - | - | cheapest | 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. Detailed API pricing page + JSON endpoint → /models/gpt-5-6-terra/pricing 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.