OpenAI: GPT-5.6 Sol Pro

openai/gpt-5.6-sol-pro

GPT-5.6 Sol Pro is a OpenAI model that isn't ranked on the TryAii Score yet — no benchmark results on file. It lists at $4/$20 per million input/output tokens with a 1.05M-token context. It's reasonably quick at roughly 58-92 tokens/sec.

Prompt $/1M

$4.000

Completion $/1M

$20.000

Context

1,050,000 tok

Best provider

110 tok/s · OpenAI

Specs

Model id: openai/gpt-5.6-sol-pro
Display name: OpenAI: GPT-5.6 Sol Pro
Modality: text+image+file->text
Tokenizer: GPT
Instruct type: —
Context length: 1,050,000
Max completion: 128,000
Prompt $/1M: $4.000
Completion $/1M: $20.000
Free tier: no

Capabilities

Function callingno
JSON modeno
System promptno
Visionno
Moderatedyes

Benchmark scores

Each axis is one benchmark, normalized to the best model in the field.

No benchmark data for this model.

Speed by provider

Provider	tok/s	TTFT	Total latency
OpenAIfastest	110	14,122 ms	18,057 ms
Azure	40	2,132 ms	2,246 ms

Prompt caching by provider

Provider	Min tokens to cache	Notes
OpenAI	1,024 tokens	GPT-5.6 family — first OpenAI generation with a cache-write premium (1.25x input on cold writes; single-use large prompts pay it for nothing). Docs cite prefixes staying reusable at least 30 min.