GPT-5.5
OpenAI's previous flagship. AA Intelligence Index v4.1 of 54.8 — a strong all-round frontier model, now succeeded by the GPT-5.6 family.
Capabilities
Pricing
| Up to 272K prompt tokens · Input | $5 / 1M tokens |
| Up to 272K prompt tokens · Cached input | $0.5 / 1M tokens |
| Up to 272K prompt tokens · Output | $30 / 1M tokens |
| Over 272K prompt tokens · Input | $10 / 1M tokens |
| Over 272K prompt tokens · Cached input | $1 / 1M tokens |
| Over 272K prompt tokens · Output | $45 / 1M tokens |
| Web search (when used) | $10 / 1,000 calls |
Provider-equivalent rates used for credits. Higher reasoning effort can consume more output tokens; it has no separate fixed multiplier. One credit equals 1¢, with a one-credit minimum per completed run and the aggregate rounded up once.
Provider pricing source · verified 2026-07-20
Compare GPT-5.5
GPT-5.5: frequently asked questions
- What is GPT-5.5?
- OpenAI's previous flagship. AA Intelligence Index v4.1 of 54.8 — a strong all-round frontier model, now succeeded by the GPT-5.6 family. You can try GPT-5.5 on TryAI without a separate provider account.
- How much does GPT-5.5 cost on TryAI?
- GPT-5.5 uses these provider-equivalent rates: Up to 272K prompt tokens · Input: $5 / 1M tokens, Up to 272K prompt tokens · Cached input: $0.5 / 1M tokens, Up to 272K prompt tokens · Output: $30 / 1M tokens, Over 272K prompt tokens · Input: $10 / 1M tokens, Over 272K prompt tokens · Cached input: $1 / 1M tokens, Over 272K prompt tokens · Output: $45 / 1M tokens, Web search (when used): $10 / 1,000 calls. One TryAI credit equals one cent of usage; completed runs have a one-credit minimum and the aggregate cost is rounded up once.
- What can GPT-5.5 do?
- GPT-5.5 supports Streaming, Reasoning, Tool use, Web search, Vision, Documents with a context window of about 1.1M tokens.
- How do I try GPT-5.5?
- Create a free TryAI account, pick GPT-5.5 from the model selector, and start generating in seconds.
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