Models / OpenAI
GPT-5.6 Sol Pro
by OpenAI ·
openai/gpt-5.6-sol-proGPT-5.6 Sol Pro is the same underlying model as GPT-5.6 Sol, served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
reasoningtool-usevisionreleased 2026-07-09
Legal score · raw
-
not yet benchmarked
Context
1.05M
max output 128K
Input
$5
per 1M tokens
Output
$25
per 1M tokens
Suite cost
-
no run recorded
Prompt caching
Grounded answers re-send the same retrieved authority every turn, so a cached read is what a long matter actually costs. Prices are per 1M tokens, from the provider’s own catalog.
Cache read
$0.50
10x cheaper than uncached
Cache write
$6.25
per 1M tokens, charged once
Uncached input
$5
per 1M tokens
Capabilities
Modalities
in fileimagetext
out text
Request parameters it accepts
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetoolsverbosity
Benchmark results
This model has not been run through the suite yet. See Humanity's Last Lawsuit for the benchmark models are ranked on.