GPT-5.5 Instant
OpenAI
GPT-5.5 Instant by OpenAI costs — per 1M input tokens and — per 1M output tokens, with a —-token context window.
Pricing
Input (per 1M tokens)
—
Output (per 1M tokens)
—
Cached input (per 1M)
—
Specifications
- Provider
- OpenAI
- Context window
- —
- Parameters
- —
- Released
- May 2026
- Open weights
- No
- Frontier model
- No
Benchmarks
- GPQA Diamond
- 82.5
- LMArena Vision Elo
- 1249.9
Compare GPT-5.5 Instant with…
GPT-5.5 Instant vs OpenAI: GPT-5.6 Sol Pro$10.00/1MGPT-5.5 Instant vs OpenAI: GPT-5 Image Mini$2.00/1MGPT-5.5 Instant vs OpenAI: gpt-oss-120b (free)$0.00/1MGPT-5.5 Instant vs OpenAI: gpt-oss-20b (free)$0.00/1MGPT-5.5 Instant vs OpenAI: GPT-5.1-Codex-Mini$2.00/1MGPT-5.5 Instant vs GPT-5 Chat (latest)$10.00/1M
FAQ
How much does GPT-5.5 Instant cost?
GPT-5.5 Instant is priced at — per 1M input tokens and — per 1M output tokens. Output tokens cost more than input.
What is GPT-5.5 Instant's context window?
GPT-5.5 Instant supports a context window of — tokens — the maximum prompt plus response length it can handle in a single request.
Is GPT-5.5 Instant open weight?
No — GPT-5.5 Instant is a closed/proprietary model accessed via API.
Data as of 2026-10-14. Source: Epoch AI, Data on AI Models (CC BY 4.0), epoch.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.