AI Model Profile
GPT-5.6 Terra
GPT-5.6 Terra is the balanced intelligence-and-cost tier of the GPT-5.6 family, positioned roughly where the mini tier sat in earlier GPT-5 generations.
Before you buy
Best for: Teams that want GPT-5.6 capability and context at half the input cost of Sol.
Price: USD API: US$2.00 input / US$12.00 output per 1M tokens
Included: GPT-5.6 Terra is the balanced intelligence-and-cost tier of the GPT-5.6 family, positioned roughly where the mini tier sat in earlier GPT-5 generations.
Main limits: Lower reasoning tier than Sol. Output is text only. Standard list rates; cache writes, tools, long-context premiums, regional processing and other service tiers can change the bill.
What Kingy showed: Related coverage: Qwen3.8-27B Beats GPT-5.6 Terra on the Agentic Index—By Less Than One Point. This review does not treat that article as a new test of this exact model, plan or current release.
Buying details checked 2026-10-23 with region and currency stated above. Historical demonstrations and the broader fact ledger keep their own dates.
Check official plans · See the demonstration and disclosure · Compare these workflows
- Family
- GPT-5
- Release date
- Unknown
- Status
- Current
- Context window
- 1,050,000 tokens
- Output limit
- 128,000 tokens
- API
- yes
- Open weights
- no
- Local/self-hosted
- no
- Pricing
- $2.50 per million input tokens, $0.25 cached input, $15.00 per million output tokens. Batch API: $1.25 input, $0.125 cached, $7.50 output.
- Evidence state
- Recheck due
Benchmark Caveat
Benchmarks and provider capability notes are directional, not universal rankings. Results can shift with prompts, tool use, latency targets, pricing tier, safety filters, context length, and the workload mix a real team runs.
See the linked official model, docs, model-card, or pricing source for provider-published capability notes.
Best for
Teams that want GPT-5.6 capability and context at half the input cost of Sol.
Skip if
Skip if the workload needs the highest reasoning tier, or if Luna meets the task at lower cost.
Strengths
OpenAI lists Terra with the same 1,050,000-token context window, 128,000 max output tokens, and 16 February 2026 knowledge cutoff as Sol, with reasoning-token support, text and image input, and supported function calling.
Weaknesses
Lower reasoning tier than Sol. Output is text only.
Agent suitability
Useful for agent workflows when the provider supports tool use, long context, structured outputs, or workflow-specific APIs.
Kingy AI take
Use this as a source-backed shortlist candidate, not a universal ranking. Re-check official provider docs and run a task-specific trial before production adoption.
Kingy AI Product Facts
GPT-5.6 Terra
Current statusUnknown
- Company
- Not yet reviewed
- Primary job
- Not yet reviewed
- Audience
- Not yet reviewed
- Evidence
- Source-backed; coverage expanding
- Latest source check
- October 29, 2026
See all tracked product factsPricing, platforms, dependencies, data claims, regions, and timeline
Sources and checks
- Coverage
- 4 of 88 tracked fields currently verified
- Sources
- 1
Source-check dates apply to the tracked facts. Editorial updates elsewhere on this page may have a different date.
Plans and pricing units
Not yet structured in this Kingy record.
Where it runs
- Availability
- Not yet reviewed
Stack and integrations
- Model / provider dependencies
- Not yet reviewed
- Integrations
- Not yet reviewed
Data and regions
- Vendor data-use claim
- Not yet reviewed
- Vendor retention claim
- Not yet reviewed
- Regions
- Not yet reviewed
Launch and latest material update
- Launch
- Not yet reviewed
- Latest material update
- Not yet reviewed
Full Model Notes
Who should consider it
Teams that want GPT-5.6 capability and context at half the input cost of Sol. GPT-5.6 Terra is the balanced intelligence-and-cost tier of the GPT-5.6 family, positioned roughly where the mini tier sat in earlier GPT-5 generations.
Plan, price and billing scope
USD API: US$2.00 input / US$12.00 output per 1M tokens. GPT-5.6 Terra is the balanced intelligence-and-cost tier of the GPT-5.6 family, positioned roughly where the mini tier sat in earlier GPT-5 generations. Prices use the currency and billing term stated here. Where a numeric rate, region or current entitlement could not be verified, it remains explicit; no checkout was completed.
Limits that affect the decision
Lower reasoning tier than Sol. Output is text only. Standard list rates; cache writes, tools, long-context premiums, regional processing and other service tiers can change the bill.
What the existing evidence shows
Related coverage: Qwen3.8-27B Beats GPT-5.6 Terra on the Agentic Index—By Less Than One Point. This review does not treat that article as a new test of this exact model, plan or current release. Product coverage; original publication date and evidence scope retained. Read the related article.
Sources and buying-review date
Buying review completed October 23, 2026. This is a source-based buying assessment. No paid product test, new generation, checkout or performance benchmark was performed. Vendor descriptions and historical examples remain distinct from independently measured results. The date does not renew the broader canonical fact ledger.
- Official source: developers.openai.com
- Official source: developers.openai.com
- Official source: chatgpt.com
- Official source: developers.openai.com
- Related Kingy coverage
Check the official offer · Compare related options
Earlier profile, sources and dates
This older record retains its original scope. Current buying qualifications above take precedence where terms have changed.
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Coding notes
Use official docs and live evals before selecting this model for production coding workflows.
Reasoning notes
Provider capability notes are useful but should be validated on representative prompts and tools.
Creative notes
Use a small creative test set before standardizing outputs for brand, media, or customer-facing work.
Research notes
Track release notes and model lifecycle notices because availability and aliases can change.
API pricing notes
Check the official pricing page before budget decisions; Kingy does not freeze token, credit, or subscription prices in model cards.
License notes
Commercial/API terms apply unless the linked official source states otherwise.
Hardware requirements
Cloud/API model; local hardware requirements are not published as a self-hosted path.
Official Model Links
Model Intelligence Research Map
Use these internal paths to move from this model profile into provider pages, static comparison pages, related Kingy records, and the broader AI launch graph. These are research paths, not rankings.