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GPT-5.6 Sol
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Tool use · Reasoning
Overview
Pricing
Evaluations
Evaluation overview
Overall rank
#7
95.9 points · 201 models
Research rank
#3
99.5 points · 195 models
Data coverage
207 items
21 sources · updated through 2026-09-03
Domain performance
Coding
#6 / 181
93.7
Research
#3 / 195
99.5
Agents
#5 / 147
95.8
Vision
#10 / 81
88.8
Long context
#7 / 95
89.1
Evaluation highlights
All evaluations
Arena Agent Steerability
Agents · Arena.ai Agent · xHigh mode
17.26%
1
/ 52
GPQA-Diamond
Reasoning · OpenAI GPT-6 Astra Release
94.6%
3
/ 137
MMMU-Pro
Multimodal · Qwen3.8-Max-0902 Official Release Evaluation
83%
1
/ 38
CyberGym
Coding · OpenAI GPT-5.6 Release
84.5%
1
/ 27
LongBench v2
Long context · Qwen3.8-2.4T-A95B Hugging Face Model Card
67.1%
3
/ 27
ExploitGym (2h)
Cybersecurity · GLM-5.3 Official Release
216tasks
1
/ 7
Basic information
Context (input / output)
1.05M / 128K
Release date
2026-07
Input modalities
Text · Image
Output modalities
Text
Family
GPT-5.6
Exact release date
2026-07-09
API model ID
gpt-5.6-sol
Availability
OpenAI
Full pricing
Input
$4 /1M
Output
$20 /1M
Related links
Official site
Version relationships
GPT-5.6 family
GPT-5.6 Luna
2026-07 · Same series
GPT-5.6 Sol
Current
2026-07 · Current model
GPT-5.6 Terra
2026-07 · Same series
Provider variants
xHigh / Codex Harness
Runtime modes
xHigh