OpenAI
GPT-5.6 Terra
Balanced GPT-5.6 model for capable, cost-efficient everyday work
Model facts
- Context window
- 1.05M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $1.5 per 1M tokens
- Cheapest paid output
- $2 per 1M tokens
- Open weights
- no
- Providers
- 45
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| max | 56.6 | 76.7 | not measured | 100.6 |
| xhigh | 52.8 | 70.6 | not measured | 90.4 |
| high | 50.1 | 67.1 | not measured | 85.4 |
| medium | 46.8 | 64.7 | not measured | 86.6 |
| low | 41.3 | 58.1 | not measured | 84.8 |
| Non-reasoning | 34.6 | 52.3 | not measured | 86.2 |
Observed price history
- 2026-08-24: $1.5 input / $2 output per 1M tokens
API providers
- GitLab Duo (Agentic Chat) — model id duo-chat-gpt-5-6-terra; free input / free output per 1M tokens; provider documentation
- Kenari — model id gpt-5-6-terra; free input / free output per 1M tokens; provider documentation
- Xpersona — model id gpt-5.6-terra; $1.5 input / $2 output per 1M tokens; provider documentation
- OpenRouter (batch) — model id openai/gpt-5.6-terra:batch; $1 input / $6 output per 1M tokens; provider documentation
- routing.run — model id gpt-5.6-terra; $1.5 input / $9 output per 1M tokens; provider documentation
- Amazon Bedrock (Global) — model id global.openai.gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Azure — model id gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Cloudflare AI Gateway — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- CrossModel — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- DigitalOcean (OpenAI) — model id openai-gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Eden AI — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- GitHub Copilot — model id gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Impossibl — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/gpt-5.6-terra-pro; $2 input / $12 output per 1M tokens; provider documentation
- LLM Gateway (Azure) — model id azure/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- LLM Gateway (OpenAI) — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Merge Gateway — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- NanoGPT — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Neon — model id gpt-5-6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Ofox — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- OpenAI — model id gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- OpenRouter — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Opper — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- OrcaRouter — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Requesty — model id gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.6-terra; $2 input / $12 output per 1M tokens; provider documentation
- Cortecs — model id gpt-5.6-terra; $2.2 input / $13.2 output per 1M tokens; provider documentation
- Amazon Bedrock — model id openai.gpt-5.6-terra; $2.2 input / $13.2 output per 1M tokens; provider documentation
- LLM Gateway (AWS Mantle) — model id aws-mantle/gpt-5.6-terra; $2.2 input / $13.2 output per 1M tokens; provider documentation
- Requesty (EU) — model id gpt-5.6-terra@eu; $2.2 input / $13.2 output per 1M tokens; provider documentation
- AI-ROUTER — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- AIHubMix — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Abacus — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Azure Cognitive Services — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Databricks — model id databricks-gpt-5-6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- OpenCode Zen — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Pioneer — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- SAP AI Core — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Vivgrid — model id gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- ZenMux — model id openai/gpt-5.6-terra; $2.5 input / $15 output per 1M tokens; provider documentation
- Venice AI — model id openai-gpt-56-terra; $3.12 input / $18.75 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.6-terra-fast; $4 input / $24 output per 1M tokens; provider documentation
- Snowflake Cortex — model id openai-gpt-5.6-terra; not published input / not published output per 1M tokens; provider documentation