GPT-5.6 Sol (max) Benchmark Results

OpenAI's GPT-5.6 Sol (max) scores 59 on the Artificial Analysis Intelligence Index, well above the average of 30 for comparable models, but is priced at $5.00 per 1M input tokens and $30.00 per 1M output tokens, making it expensive relative to peers. The model supports text and image input, outputs text, and has a 1M token context window.

GPT-5.6 Sol max Intelligence, Performance & Price Analysis Model summary IntelligenceUpdated Speed Price Cache Price Verbosity GPT-5.6 Sol max is amongst the leading models in intelligence, but particularly expensive when comparing to other models of similar price. The model supports text and image input, outputs text, and has a 1M tokens context window. GPT-5.6 Sol max scores 59 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models averaging 30 . When evaluating the Intelligence Index, it generated 70M tokens, which is somewhat verbose in comparison to the average of 60M. Pricing for GPT-5.6 Sol max is $5.00 per 1M input tokens expensive, average: $1.71 and $30.00 per 1M output tokens expensive, average: $8.70 . In total, it cost $2824.18 to evaluate GPT-5.6 Sol max on the Intelligence Index. | Reasoning | Yes This page shows the reasoning version of this model. A non-reasoning variant may also exist. | |---|---| | Input modality | Supports: text, image | | Output modality | Supports: text | | Context window | 1M ~1500 A4 pages of size 12 Arial font | Metrics are compared against models of the same class: - Non-reasoning models → compared only with other non-reasoning models - Reasoning models → compared across both reasoning and non-reasoning - Open weights models → compared only with other open weights models of the same size class: - Tiny: ≤4B parameters - Small: 4B–40B parameters - Medium: 40B–150B parameters - Large: 150B parameters - Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio: - <$0.15 per 1M tokens - $0.15–$1 per 1M tokens - $1 per 1M tokens Highlights Speed IntelligenceUpdated Artificial Analysis Intelligence Index Artificial Analysis Intelligence Index by Open Weights / Proprietary Intelligence Evaluations Agentic real-world work tasks, Elo-500 /2000 Agentic tool use Agentic coding & terminal use Coding Reasoning & knowledge Scientific reasoning Physics reasoning Knowledge 1 - hallucination rate Long context reasoning AA-Briefcase /evaluations/aa-briefcase New Agentic knowledge work, Elo Agentic SaaS workflows Legal agentic work, task all-pass rate Agentic business operations Instruction following Long-horizon agentic tasks Kubernetes incident root-cause analysis Visual reasoning AA-BriefcaseNew AA-Briefcase Elo AA-Omniscience AA-Omniscience Index Intelligence Index Comparisons Intelligence vs. Cost per Intelligence Index Task Token Use Output Tokens per Intelligence Index Task Price and Cost Cost per Intelligence Index Task Cost to Run Artificial Analysis Intelligence Index Pricing: Cache Hit, Input, and Output Context Window Context Window Frequently Asked Questions Common questions about GPT-5.6 Sol max GPT-5.6 Sol max was created by OpenAI. GPT-5.6 Sol max scores 59 on the Artificial Analysis Intelligence Index, placing it well above average among other reasoning models in a similar price tier median: 30 . GPT-5.6 Sol max costs $5.00 per 1M input tokens at the higher end, median: $1.71 and $30.00 per 1M output tokens at the higher end, median: $8.70 , based on the median across providers serving the model. GPT-5.6 Sol max costs $5.00 per 1M input tokens and $30.00 per 1M output tokens based on the median across providers serving the model . For a blended rate 7:2:1 cache hit/input/output ratio , this is $4.35 per 1M tokens. Pricing may vary by provider. Compare provider pricing /models/gpt-5-6-sol/providers When evaluated on the Intelligence Index, GPT-5.6 Sol max generated 70M output tokens, which is somewhat higher than average compared to other reasoning models in a similar price tier median: 60M . Yes, GPT-5.6 Sol max is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer. GPT-5.6 Sol max supports text and image input. GPT-5.6 Sol max supports text output. Yes, GPT-5.6 Sol max supports image input and can analyze, describe, and answer questions about images. Yes, GPT-5.6 Sol max is multimodal. It can process text and image input and generate text output. GPT-5.6 Sol max has a context window of 1.0M tokens. This determines how much text and conversation history the model can process in a single request. No, GPT-5.6 Sol max is proprietary. The model weights are not publicly available. GPT-5.6 Sol max is a proprietary model and OpenAI has not disclosed the model size or parameter count. GPT-5.6 Sol max achieves a score of 59 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding. Yes, GPT-5.6 Sol max is available via API through 1 provider. Compare API providers /models/gpt-5-6-sol/providers GPT-5.6 Sol max is available through 1 API provider. Compare providers /models/gpt-5-6-sol/providers