OpenAI model

GPT-5.6 Terra API

openai/gpt-5.6-terra is an OpenAI model in the NextModel gateway catalog. It has an input price of $2 per 1M tokens and an output price of $12 per 1M tokens. Its context window is 1,050,000 tokens.

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OpenAIPlatform curatedCatalog
ThinkingFunction CallingVisionWeb Search
Input priceStarting at $2 / 1M tokens
Output price$12 / 1M tokens
Context length1M tokens
Max output8.2k tokens
Input lengthInput / 1MOutput / 1MCache hit / 1M
≤ 272k$2$12$0.2
> 272k$4$18$0.4

What is GPT-5.6 Terra API in NextModel?

openai/gpt-5.6-terra is an OpenAI model in the NextModel gateway catalog. It has an input price of $2 per 1M tokens and an output price of $12 per 1M tokens. Its context window is 1,050,000 tokens.

GPT-5.6 Terra via NextModel: 1M-token context; Starting at $2 / 1M tokens in / $12 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Best use cases

  • Call this id for vision, long-context, or agent workloads that need 1,050,000 tokens of context.
  • Call it when you need streaming, tool use, JSON output, and vision in one model.
  • You need the listed capabilities on this catalog entry.

When not to use

  • Do not call this id if you need a first-party CacheSafety benchmark, because no CacheSafety row is published for openai/gpt-5.6-terra.
  • Skip it if your workload depends on CacheSafety data for cache hit or trap decisions.
  • A required number is unpublished in the catalog snapshot.

OpenAI-compatible code example

request.sh
curl https://api.nextmodel.app/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $NEXTMODEL_API_KEY" \
  -d '{"model":"openai/gpt-5.6-terra","messages":[{"role":"user","content":"Reply with OK."}]}'

Switching models only changes the model field.

Try it in the playground

Similar alternatives

OpenAICatalog

GPT-5.6 Luna

GPT-5.6 Luna via NextModel: 1M-token context; Starting at $0.2 / 1M tokens in / $1.20 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $0.2 / 1M tokensInput$1.20 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
OpenAICatalog

GPT-5.6 Sol

GPT-5.6 Sol via NextModel: 1M-token context; Starting at $5 / 1M tokens in / $30 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $5 / 1M tokensInput$30 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
MoonshotaiCatalog

Kimi K3

Kimi K3 via NextModel: 1M-token context; $2.95 / 1M tokens in / $14.71 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$2.95 / 1M tokensInput$14.71 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details

Compare GPT-5.6 Terra

GPT-5.6 Terra vs GPT-5.6 LunaGPT-5.6 Terra vs GPT-5.6 SolGPT-5.6 Terra vs Kimi K3GPT-5.6 Terra vs Gemini 3.5 Flash-LiteGPT-5.6 Terra vs Gemini 3.6 Flash

Reading

Articles that explain GPT-5.6 Terra

FAQ

GPT-5.6 Terra API questions

What model id do I send for GPT-5.6 Terra?

Send openai/gpt-5.6-terra to https://api.nextmodel.app/v1 with your OpenAI SDK. If that id is missing from /v1/models, the page is stale.

What does the catalog list for price and context?

GPT-5.6 Terra is listed at $2 / 1M tokens input and $12 / 1M tokens output. Context window: 1050000 tokens.

What should I treat as unverified?

Do not call this id if you need a first-party CacheSafety benchmark, because no CacheSafety row is published for openai/gpt-5.6-terra. Skip it if your workload depends on CacheSafety data for cache hit or trap decisions.

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