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GPT-5.5

OpenAI · The generalist standard.

The numbered GPT line remains the broadest generalist — the safe, well-tooled default with the largest third-party ecosystem.

Live OpenRouter pricing · capability ratings & benchmarks are indicative

Context window

1.1M

tokens

Input · $/1M

$5.00

per million tokens

Output · $/1M

$30.00

per million tokens

Vs. cost floor

103×

output cost vs DeepSeek V4.1 Flash

Capability profile

Editorial ratings across six axes (0–100), compiled from publisher reports and public evals — indicative, not measured by TrendNexus.

Benchmark highs

MMLU-Pro≈86%

broad knowledge leader

SWE-bench Verified≈74%

strong engineering

MMMU≈83%

multimodal

IFEval≈93%

instruction following

Where it sits in the field

Output cost per million tokens across all 15 tracked flagships — GPT-5.5 highlighted.

What it's suited to build

Product classes where this model's profile wins — mockups are illustrative, not model output.

Product AI

General product AI

The all-purpose layer when requirements are still moving.

Conversational

Assistant experiences

Polished conversational UX out of the box.

Content

Marketing engines

On-brand copy across formats and channels.

Benchmark figures and capability ratings are indicative — compiled from publisher reports and public leaderboards, refreshed editorially, and not independently measured by TrendNexus. Verify against your own evals before procurement decisions. Pricing updates with the daily build.