PickAIModel.com - Compare GPT-5.6 Sol and GPT-5.6 Terra
GPT-5.6 Sol vs GPT-5.6 Terra: pricing, Quality, Value, and benchmarks
Side-by-side buyer comparison built from the current published top 10 snapshot. Quality and Value stay deterministic, while editorial verdict excerpts remain clearly AI-labeled.
Provisional evidenceProvisional evidence
GPT-5.6 Sol Quality
82.6
GPT-5.6 Terra Quality
62.0
Quality delta
+20.6GPT-5.6 Sol leads
Value delta
+10.9GPT-5.6 Sol leads
Buyer summary
GPT-5.6 Sol leads Quality by 20.6 points. GPT-5.6 Sol leads Value by 10.9 points.
Shared roster
Both pages link back to the same published roster and methodology, so the comparison stays on one deterministic evidence set.
The balanced GPT-5.6 option for everyday work, trading some peak capability for lower cost.
Monthly price
ChatGPT access and limits vary by plan and product surface.
App access
ChatGPT
Conversation benchmark
Unavailable
Deterministic
Plan availability is described conservatively without inferring a tier-specific subscription price.
Deterministic
Official GPT-5.6 availability across ChatGPT, Codex, and the API.
Deterministic scores
Quality and Value comparison
GPT-5.6 Sol
Q 82.6
V 33.6
Quality rank 2 and value rank 3 in the current published roster.
GPT-5.6 Terra
Q 62.0
V 22.7
Quality rank 3 and value rank 6 in the current published roster.
Buyer access
Pricing, app access, and Conversation Value
GPT-5.6 Sol
Deterministic3K tokens/chat
ChatGPT access and limits vary by plan and product surface.
Unavailable
Hosted app: ChatGPT
GPT-5.6 Terra
Deterministic3K tokens/chat
ChatGPT access and limits vary by plan and product surface.
Unavailable
Hosted app: ChatGPT
Benchmark evidence
GPT-5.6 Sol
Verified evidence
Humanity's Last Exam
Normalized quality input
47.2%
Artificial Analysis GPT-5.6 Sol max analysis page | Independent Artificial Analysis HLE result for the max-reasoning model variant. This is provisional tier-3 evidence, not an OpenAI-published no-tools HLE result.
SWE-Bench Pro
Software engineering task resolution
64.6%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
GPQA Diamond
Graduate-level scientific reasoning
94.6%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
Terminal-Bench 2.1
Agentic terminal task completion
88.8%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
Benchmark evidence
GPT-5.6 Terra
Verified evidence
Humanity's Last Exam
Normalized quality input
41.8%
Artificial Analysis GPT-5.6 Terra max analysis page | Independent Artificial Analysis HLE result for the max-reasoning model variant. This is provisional tier-3 evidence, not an OpenAI-published no-tools HLE result.
SWE-Bench Pro
Software engineering task resolution
63.4%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
GPQA Diamond
Graduate-level scientific reasoning
92.9%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
Terminal-Bench 2.1
Agentic terminal task completion
87.4%
OpenAI GPT-5.6 release | Vendor-reported OpenAI GPT-5.6 launch result. Preserve the named tier and launch configuration; do not substitute a similarly named benchmark or model variant.
Editorial excerpt
GPT-5.6 Sol
AI-assisted, editorially reviewed
OpenAI’s flagship for complex professional work and coding, at premium API pricing.
GPT-5.6 Sol is OpenAI’s flagship tier for complex coding and professional work. Its strong independent HLE and official SWE-Bench Pro evidence come with the family’s highest API price, so it is best reserved for work that justifies maximum capability.
Editorial excerpt
GPT-5.6 Terra
AI-assisted, editorially reviewed
The balanced GPT-5.6 option for everyday work, trading some peak capability for lower cost.
GPT-5.6 Terra is the balanced tier for everyday professional and coding workloads. It gives up some peak performance versus Sol in exchange for lower token pricing, making it the practical default when both capability and cost matter.
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