GPT-5.6 Terra
by OpenAIChat
Balanced GPT-5.6 model for capable, cost-efficient everyday work
- Context
- 1.05M tokens
- Max output
- 128,000 tokens
- Released
- 2026-07-09
- Weights
- Closed
openai/gpt-5-6-terra · also seen as openai/gpt-5.6-terra-pro, duo-chat-gpt-5-6-terra, databricks-gpt-5-6-terra, global.openai.gpt-5.6-terra, +16 more
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2026-07-09
- Weights
- Closed
- Input
- Text, Image, PDF
- Output
- Text
- Context window
- 1,050,000 max across endpoints
- Max output
- 128,000
- Providers
- 19 + 29 gateways, not counted as providers
- Epoch Capabilities Index
- 159.4 ± 2.7 against price
- Direct price range
- $2.00–$2.60 in · $12.00–$15.60 out per 1M tokens · 16 of 19 providers have a comparable price
More details
- Last updated
- 2026-07-09
- Knowledge cutoff
- 2026-02-16
- Developer country
- United States of America
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel tools
- Structured output
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt caching
- Web search
- Computer useunknown
- System messages
- Assistant prefillunknown
- Temperature
- Streaming
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
Atom feedNo change since 19 Oct 2026. The cheapest direct price has been $2.00 in / $12 out per 1M tokens at OpenAI on every data refresh since then.
Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs GPT-5.6 Terra |
|---|---|---|---|---|---|
| Gemini 3.5 FlashGoogle | $2.75 | $1.50 | $9.00 | 1.05M | +0% |
| Gemini Omni Flash PreviewGoogle | $2.75 | $1.50 | $9.00 | 131K | +0% |
| Kimi LatestMoonshot AI | $2.75 | $1.65 | $8.25 | 1.05M | +0% |
| Kimi K3Moonshot AI | $2.75 | $1.65 | $8.25 | 1.05M | +0% |
| Gemini 2.5 Computer Use Preview 10-2025Google | $2.71 | $1.25 | $10 | 128K | −2% cheaper |
| Gemini 2.5 Pro Preview 06-05Google | $2.71 | $1.25 | $10 | 1.05M | −2% cheaper |
| OpenAI GPT-5.1 ChatOpenAI | $2.71 | $1.25 | $10 | 128K | −2% cheaper |
| Qwen3.8 2.4T A95B (NVFP4)Alibaba (Qwen) | $2.67 | $2.00 | $6.00 | 1M | −3% cheaper |
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| GPT-6 Sol | 2026-09-22 | 1.05M | from $2.00 |
| GPT-6 Sol Pro | 2026-09-22 | 1.05M | from $2.00 |
| GPT-6 Luna Pro | 2026-09-22 | 1.05M | from $0.10 |