Agent Team Max just got sharper eyes. The web-search engine inside CellCog’s deep research mode now runs on GPT-5.6 Sol, OpenAI’s flagship reasoning model, replacing GPT-5.5. The price of Agent Team Max does not change, and you don’t need to do anything: every new Max chat searches with the new model automatically.
Deep research is the workload where CellCog has the most to prove, and search is the part of that loop we refuse to let age. Here is what changed and why it matters.
- Agent Team Max, CellCog’s deep research mode, now performs its web searches with OpenAI’s GPT-5.6 Sol instead of GPT-5.5.
- GPT-5.6 Sol is OpenAI’s flagship reasoning model, released July 9, 2026, and positioned by OpenAI for complex professional work like research and analysis.
- The price of Agent Team Max does not change: OpenAI lists the same per-token rates for GPT-5.6 Sol as for GPT-5.5, so the upgrade is free at equal usage.
- Search threads keep working across the upgrade: follow-up searches continue on the new model automatically, with no action needed from you.
- Agent mode and Agent Team keep their existing search stack; this upgrade is specific to the premium Max tier, where search quality matters most.
- This continues our pattern of moving each part of the stack to the strongest available model for its job, as we did with Fable 5 for the agents themselves.
- What changed?
- The web-search model inside Agent Team Max moved from OpenAI’s GPT-5.5 to GPT-5.6 Sol, OpenAI’s flagship reasoning model released July 9, 2026.
- Does it cost more?
- No. OpenAI prices GPT-5.6 Sol at the same per-token rates as GPT-5.5, so Agent Team Max pricing is unchanged.
- Do I need to change anything?
- No. Every new Agent Team Max chat uses the new search model automatically, and existing search threads continue seamlessly.
- What about Agent mode and Agent Team?
- They keep their existing search stack. This upgrade targets the Max tier, where deep research quality matters most.
§ 01What GPT-5.6 Sol Is
GPT-5.6 Sol is the flagship of OpenAI’s GPT-5.6 family, released on July 9, 2026. OpenAI positions it as its frontier model for complex professional work: research, analysis, science, and coding. In our stack it takes over a very specific job, and one that rewards exactly that kind of model.
§ 02The Job: Being the Researcher’s Eyes
When Agent Team Max researches a topic, the search model is not a passive index lookup. For every search thread it:
- turns the agent’s question into real search queries, often several per request
- reads the pages that come back and judges which sources to trust
- distills what it found into a direct answer with inline citations back to the sources
- carries the thread’s context forward, so follow-up searches build on earlier findings instead of starting over
A stronger reasoning model improves every one of those steps. Better queries find better sources; better judgment filters them; better synthesis means the research agents downstream work from tighter, better-cited material.
§ 03What It Costs: Nothing New
This is the part we like most. As of August 14, 2026, OpenAI’s pricing page lists GPT-5.6 Sol at the same per-token rates as GPT-5.5, and the per-search tool fee is the same across models. So Agent Team Max pricing is unchanged: the upgrade is free at equal usage.
§ 04What You’ll Notice
- Every new Agent Team Max chat searches with GPT-5.6 Sol automatically. No settings, no migration steps.
- Open research threads continue seamlessly. Follow-up searches carry their context onto the new model.
- Agent mode and Agent Team are unchanged. They keep their fast, cost-efficient search provider; Max is the tier built for depth, so it gets the strongest search model.
§ 05The Honest Caveats
Model quality claims belong to benchmarks and time, not launch posts. What we can say directly: GPT-5.6 Sol is the model OpenAI itself positions for frontier research work, it is a full generation newer than what Max searched with yesterday, and it arrives at the same price. We verified the integration end to end before shipping, including live searches, citation output, and thread continuity across the upgrade. As always, pricing and model availability are OpenAI’s decisions, not ours, and we will keep moving each part of the stack to the best tool for its job, the same way every chat moved to Fable 5 in July.
If you have a hard question sitting around, this is a good week to hand it to a Max chat.
Q1What is GPT-5.6 Sol?
GPT-5.6 Sol is the flagship model of OpenAI’s GPT-5.6 family, released July 9, 2026. OpenAI positions it as its frontier reasoning model for complex professional work, including research, analysis, coding, and science.
Q2Why does the search model matter for deep research?
In Agent Team Max, the search model is the researcher’s eyes: it decides what to look for, reads what comes back, and distills sources into cited findings. A stronger reasoning model makes better queries, judges sources more carefully, and returns tighter, better-cited answers.
Q3Will my Agent Team Max chats cost more after this change?
No. As of August 14, 2026, OpenAI’s pricing page lists GPT-5.6 Sol at the same per-token rates as GPT-5.5, and the per-search tool fee is unchanged, so the upgrade carries no price increase at equal usage.
Q4What happens to a research thread that was open during the upgrade?
It continues. Follow-up searches automatically carry the thread’s context onto the new model, so ongoing research picks up where it left off.
Q5Why only Agent Team Max and not every mode?
Each mode uses the search stack that fits its job. Agent mode and Agent Team use a fast, cost-efficient search provider; Max is the deep research tier, so it gets the strongest search model available.