GPT-5.5 pricing and routing profile
GPT-5.5 from OpenAI lists at $5.00 per million input tokens and $30.00 per million output tokens, with a 1,050,000-token context window. Prices from OpenRouter's catalogue on 2026-09-28.
Tool callingStructured outputReasoning control
Cost per 1,000 requests
| Request shape | List cost |
|---|---|
| Classification or routing (600 tokens in, 10 out) | $3.30 |
| Chat reply (2,000 in, 400 out) | $22.00 |
| Retrieval-augmented answer (8,000 in, 500 out) | $55.00 |
Before prompt caching. Try your own shape in the cost calculator.
Can Gimbix route to it first?
Not as a first-answer model through OpenRouter: no host returns token log probabilities for GPT-5.5. It can still be the model Gimbix falls back to when a cheaper model is unsure.
Who serves GPT-5.5
| Host | Input / output per 1M | Log probabilities | Uptime, last 30 min |
|---|---|---|---|
| OpenAI | $2.50 / $15.00 | no | — |
| Azure | $5.00 / $30.00 | no | 100.0% |
| OpenAI | $5.00 / $30.00 | no | 100.0% |
| Azure | $5.50 / $33.00 | no | — |
| Azure | $5.50 / $33.00 | no | — |
| Amazon Bedrock | $5.50 / $33.00 | no | — |
| OpenAI | $12.50 / $75.00 | no | — |
A host that lists log probabilities may still omit them; Gimbix checks each one before relying on it.
Cheaper models that can answer first
Models priced below GPT-5.5 that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.
| Model | Input / output per 1M | Cheaper on a chat reply |
|---|---|---|
| Qwen3.8 Max Prime | $4.00 / $12.00 | 42% |
| Ember-1 | $3.00 / $15.00 | 45% |
| Kimi K3 | $3.00 / $15.00 | 45% |
| GLM 5.3 Prime | $2.80 / $8.80 | 59% |
| GPT Audio | $2.50 / $10.00 | 59% |
| GPT-4o (2024-11-20) | $2.50 / $10.00 | 59% |
Compare GPT-5.5
- GPT-5.5 vs Claude Opus 5.5
- GPT-5.5 vs Claude Sonnet 5
- GPT-5.5 vs Claude Fable 5.1
- GPT-5.5 vs Claude Opus 5
- GPT-5.5 vs GPT-6 Sol
- GPT-5.5 vs GPT-6 Astra
- GPT-5.5 vs GPT-5.6 Sol
- GPT-5.5 vs GPT-5.6 Terra
- GPT-5.5 vs GPT-5.4
- GPT-5.5 vs Gemini 3.1 Pro Preview
- GPT-5.5 vs Gemini 3.8 Flash
- GPT-5.5 vs Grok 4.7
- GPT-5.5 vs Qwen3.8 Max (0902)
- GPT-5.5 vs Kimi K3
- GPT-5.5 vs GLM 5.3
- GPT-5.5 vs DeepSeek V4 Pro 0423
- GPT-5.5 vs Mistral Large 3 2512
- GPT-5.5 vs Nova Premier 1.0
- GPT-5.5 vs Command A
- GPT-5.5 vs GPT-6 Luna
- GPT-5.5 vs GPT-5.6 Luna
- GPT-5.5 vs GPT-5.4 Mini
- GPT-5.5 vs GPT-5.4 Nano
- GPT-5.5 vs GPT-4.1 Mini
- GPT-5.5 vs gpt-oss-120b
- GPT-5.5 vs gpt-oss-20b
- GPT-5.5 vs Claude Haiku 4.5
- GPT-5.5 vs Gemini 3.5 Flash Lite
- GPT-5.5 vs Gemma 4 31B
- GPT-5.5 vs DeepSeek V4.1 Flash
- GPT-5.5 vs DeepSeek V4 Flash 0731
- GPT-5.5 vs GLM 5.3 Flash
- GPT-5.5 vs Hy4 preview
- GPT-5.5 vs MiMo-V2.6-Flash
- GPT-5.5 vs Nemotron 3.5 Lightning
- GPT-5.5 vs Nemotron 3 Ultra
- GPT-5.5 vs Qwen3.8 Flash
- GPT-5.5 vs Qwen3.7 Flash
- GPT-5.5 vs Qwen3.8 27B
- GPT-5.5 vs MiniMax M3
- GPT-5.5 vs Kimi K2.6
- GPT-5.5 vs Mistral Small 4
- GPT-5.5 vs Ministral 3 8B 2512
- GPT-5.5 vs Llama 4 Maverick
- GPT-5.5 vs Llama 3.3 70B Instruct
- GPT-5.5 vs Nova Lite 1.0
- GPT-5.5 vs Nova Micro 1.0
- GPT-5.5 vs Command R7B (12-2024)
- GPT-5.5 vs Phi 4
Questions
How much does GPT-5.5 cost?
GPT-5.5 lists at $5.00 per million input tokens and $30.00 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $22.00 per 1,000 requests.
What is the context window of GPT-5.5?
1,050,000 tokens.
Can a cheaper model replace GPT-5.5?
Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match GPT-5.5 on one half of your requests and make at most three answers worse on the other.