ChatGPT 5.6

SOL · TERRA · LUNA

OpenAI's unified ChatGPT 5.6 family - Sol (reasoning), Terra (balanced), Luna (speed) - on one 1.05M-context foundation with multi-agent orchestration.

Context

1,050,000 tokens

Architecture

Unified Reasoning × 3 Personalities

Official API (1M)

$3 in / $12 out

License

Proprietary API / ChatGPT Plus & Pro

Published benchmarks · lab-reported

Vendor-published figures, not independently reproduced. Sources in Verification below.

SWE-BENCH

76.8%

MMLU-PRO

86.4%

Quickstart

curl -s https://modelregistry.tirup.in/api/cli?model=gpt-5-6

OFFICIAL ANNOUNCEMENT API DOCS

BACK TO LEDGER

Sources

ChatGPT 5.6 announcement · OpenAI
ChatGPT 5.6 API reference · OpenAI

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