# GPT-5.6 Sol (max) Benchmark Results > Source: > Published: 2026-07-09 18:51:15+00:00 # 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)