GPT-5.2 Pro vs GPT-5.6 Sol
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | GPT-5.2 Pro | GPT-5.6 Sol |
|---|---|---|
| CostLower is better · Published-token output estimate | UnrankedNot in the 36-model eligible cohort | #20 of 36$0.117 per LiveBench case |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
| Benchmark | GPT-5.2 Pro | GPT-5.6 Sol |
|---|---|---|
| ARC-AGI-1verified-v1-15fb467fd4fc · verified_score · leader | 90.5093% of row best · percent · GPT-5.2 Pro (XHigh) | 97.50100% of row best · percent · GPT-5.6 Sol (XHigh) |
| ARC-AGI-2verified-v2-9a3db289984e · verified_score · leader | 54.1659% of row best · percent · GPT-5.2 Pro (High) | 92.50100% of row best · percent · GPT-5.6 Sol (Max) |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 2 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | GPT-5.2 Pro | GPT-5.6 Sol |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Family | Gpt 5 2 | Gpt 5 6 |
| Model | GPT-5.2 Pro | GPT-5.6 Sol |
| Version | GPT-5.2 Pro | GPT-5.6 Sol |
| Lifecycle | active | active |
| Released | 2025-12-11 | Unknown |
| Knowledge cutoff | 2025-08-31 | 2026-02-16 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 400K | 1,050K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Openai (Standard), Openrouter (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, tools |
14 comparable fields · 6 material differences · Pair passes the primary-source comparison gate
GPT-5.2 Pro Capabilities
GPT-5.6 Sol Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
GPT-5.2 Pro vs GPT-5.6 Sol FAQs
Is GPT-5.2 Pro or GPT-5.6 Sol better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both GPT-5.2 Pro and GPT-5.6 Sol, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, GPT-5.2 Pro or GPT-5.6 Sol?+
GPT-5.2 Pro is $21.00 and GPT-5.6 Sol is $2.00 per million tokens, so GPT-5.6 Sol is cheaper on this metric. GPT-5.2 Pro is $168.00 and GPT-5.6 Sol is $10.00 per million tokens, so GPT-5.6 Sol is cheaper on this metric.
Which has a larger context window, GPT-5.2 Pro or GPT-5.6 Sol?+
GPT-5.6 Sol has the larger sourced context window. GPT-5.2 Pro supports 400K and GPT-5.6 Sol supports 1,050K.
Which performs better in benchmarks, GPT-5.2 Pro or GPT-5.6 Sol?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can GPT-5.2 Pro or GPT-5.6 Sol be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. GPT-5.2 Pro is not marked open weight; GPT-5.6 Sol is not marked open weight.
Can GPT-5.2 Pro and GPT-5.6 Sol understand images?+
GPT-5.2 Pro is documented with image input; GPT-5.6 Sol is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, GPT-5.2 Pro or GPT-5.6 Sol?+
Neither has a larger sourced maximum output. GPT-5.2 Pro is 128K and GPT-5.6 Sol is 128K.
Do GPT-5.2 Pro and GPT-5.6 Sol support reasoning and tool use?+
GPT-5.2 Pro: reasoning, tool calling, and image input. GPT-5.6 Sol: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, GPT-5.2 Pro or GPT-5.6 Sol?+
GPT-5.2 Pro has 2 sourced provider routes; GPT-5.6 Sol has 2, a tie.
Which offers better value, GPT-5.2 Pro or GPT-5.6 Sol?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.