OpenAI: GPT-5.5
Analysis Summary
GPT-5.5 is OpenAI's current flagship, sitting at the top of the intelligence and coding rankings across the full model landscape. It pairs world-class reasoning with exceptional coding performance, a 77-point agentic index, and full multimodal support including vision, tool use, and function calling. The 1.05M token context window means it can hold entire codebases or large document sets in a single session.
For businesses, this makes it a strong fit for autonomous software engineering agents, complex multi-step workflows, long-document analysis, and any client-facing application where answer quality is critical. The combination of vision, function calling, and agentic reliability means teams can consolidate a wide range of tasks on a single model rather than managing multiple specialised tools.
At $5 input and $30 output per million tokens, it is priced at the premium end. The cost is justified for high-value, high-complexity tasks, but teams running high-volume or routine workloads should pair it with a cheaper model. For organisations that need the best available reasoning and coding in a single API, this is the current benchmark.
Assessed July 10, 2026
Editorial notes
GPT-5.5 from OpenAI leads on reasoning, coding, and agentic performance, with a 1M token context, vision, tool use, and function calling across a broad range of business workloads.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
GPT-5.5 from OpenAI leads on reasoning, coding, and agentic performance, with a 1M token context, vision, tool use, and function calling across a broad range of business workloads.
How OpenAI: GPT-5.5 compares
OpenAI: GPT-5.5 ranks #4 of 393 AI models we track for overall intelligence, #3 of 157 for coding, #96 of 300 for agentic tasks. Its 1.1M-token context window is larger than 98% of the models we list. At $5.00 per million input tokens it is cheaper than 7% of comparable models.
Dark bar = input Ā· light bar = output, scaled to the priciest peer.
1M tokens ā 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on content. The pulled-in value corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side āPricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $5.00 | $0.005000 |
| Output | $30.00 | $0.030000 |
What would OpenAI: GPT-5.5 cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 612 models ā Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: GPT-5.5 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout OpenAI: GPT-5.5
GPT-5.5 is OpenAIās frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token..
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Frequently asked questions about OpenAI: GPT-5.5
How much does OpenAI: GPT-5.5 cost?
OpenAI: GPT-5.5 costs $5.00 per million input tokens and $30.00 per million output tokens.
What is the context window of OpenAI: GPT-5.5?
OpenAI: GPT-5.5 has a context window of 1,050,000 tokens (1.1M).
Is OpenAI: GPT-5.5 good for coding?
On our coding benchmark index, OpenAI: GPT-5.5 ranks #3 of 157 models, placing it in the top quartile of the field for code generation and debugging.
What can OpenAI: GPT-5.5 do?
OpenAI: GPT-5.5 supports image/vision input, tool use, and function calling.
Who created OpenAI: GPT-5.5?
OpenAI: GPT-5.5 is developed by OpenAI and was released on April 24, 2026.
