GPT-5.5 Flagship vs Claude Opus 4.8
Both models are live in the Cybrdeck playground. Instead of trusting a single answer or a generic leaderboard, run the same prompt through GPT-5.5 Flagship and Claude Opus 4.8 side by side and diff the results in the consensus studio — with real latency and credit cost shown per model.
GPT-5.5 Flagship
OpenAI's premier general agentic model. Uncompromising reasoning. Supports the full reasoningEffort ladder (none/light/standard/xhigh).
Claude Opus 4.8
Anthropic's frontier Opus tier. The deepest reasoning and longest-horizon autonomy in the Claude family.
Spec comparison
Which costs less on Cybrdeck?
GPT-5.5 Flagship burns 30 credits per 1,000 output tokens; Claude Opus 4.8 burns 25. Claude Opus 4.8 is the lower-cost option for the same output volume. Credit rates are Cybrdeck's published playground multipliers, so the numbers move with the catalog rather than a snapshot.
Frequently asked
What is the difference between GPT-5.5 Flagship and Claude Opus 4.8?+
GPT-5.5 Flagship is served by OpenAI with a 1.1M-token context window; Claude Opus 4.8 comes from Anthropic with 1M tokens. In Cybrdeck you run both on the same prompt and diff the answers side by side instead of trusting a single model's take.
Which is cheaper to run, GPT-5.5 Flagship or Claude Opus 4.8?+
On Cybrdeck credits, GPT-5.5 Flagship burns 30 credits per 1,000 output tokens and Claude Opus 4.8 burns 25. Claude Opus 4.8 is the lower-cost option for the same output volume.
Can I use GPT-5.5 Flagship and Claude Opus 4.8 side by side?+
Yes. The Cybrdeck playground runs multiple models on one prompt in a consensus studio, so you see exactly where GPT-5.5 Flagship and Claude Opus 4.8 agree and where they diverge — starting on the free tier.
Which model should I pick for reasoning and chain-of-thought?+
It depends on your workload. Run both against your own prompt in the playground: Cybrdeck shows latency and credit cost per model, so you decide from your real task rather than a generic leaderboard.