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GPT-5.6 Sol Add a modelChat with this model

Attribute	GPT-5.6 Solopenai/gpt-5.6-sol
Specs
Context window	1M
Max output	128K
Input modalities	TextImage
Output modalities	Text
Capabilities
Streaming	Supported
Tool calling	Supported
Structured output (JSON)	Supported
Image input	Supported
Thinking mode	Supported
Price / 1M tokens
Input	$ 5.00>= 272K$ 10.00
Output	$ 30.00>= 272K$ 45.00
Cache read	$ 0.50>= 272K$ 1.00
Cache write	$ 6.25>= 272K$ 12.50
What it is good at
Best for	Frontier agentic coding Complex professional work
Published benchmarks
Terminal-Bench 2.1pass_rate	88.8%effort max(setup not fully disclosed)
BrowseComp (with tools)accuracy	90.4%effort max(setup not fully disclosed)
Agents' Last Examscore	52.7%effort max(setup not fully disclosed)
SWE-Bench Pro (Public)pass_rate	64.6%effort max(setup not fully disclosed)
OSWorld 2.0success_rate	62.6%effort max(setup not fully disclosed)
OpenAI MRCR v2 8-needle 512K–1Maccuracy	73.8%effort max(setup not fully disclosed)
MMMU Pro (with tools)accuracy	84.6%effort max(setup not fully disclosed)
GPQA Diamondaccuracy	94.6%effort max(setup not fully disclosed)
Toolathlonscore	58%effort max(setup not fully disclosed)