GPT-5.6 Terra
OpenAI · Multimodal · Released Jul 2026
A midrange model in OpenAI's GPT-5.6 series that balances capability and efficiency with a 1.05M token context window.
- Strengths
- Handles coding, reasoning, and agentic tasks effectively while maintaining reasonable resource efficiency for production workloads.
- Best for
- General-purpose development work including code generation, multi-step reasoning, and autonomous agent orchestration at scale.
- Limitations
- Not positioned as the most capable tier for cutting-edge reasoning or the most economical for simple text-only tasks that don't require extensive context.
Input / 1M
$2.00
Output / 1M
$12.00
Cached input / 1M
$0.2
Context window
1.05M
Also billed
- Cache write
- $2.50 / 1M
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in decreased 20.0% out decreased 20.0%
- 90d
- in decreased 20.0% out decreased 20.0%
- 1y
- in decreased 20.0% out decreased 20.0%
- Since launch
- in decreased 20.0% out decreased 20.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 17 Aug 2026 | $2.00 | $12.00 | $0.2 | Imported from OpenRouter | openrouter.ai |
| 30 Jul 2026 | $1.00 | $6.00 | $0.1 | Imported from OpenRouter | openrouter.ai |
| 27 Jul 2026 | $1.25 | $7.50 | $0.125 | Imported from OpenRouter | openrouter.ai |
| 10 Jul 2026 | $2.50 | $15.00 | $0.25 | Imported from OpenRouter | openrouter.ai |