GPT-5.5
No shutdown before this date. GPT-5.5 stays on Amazon Bedrock until at least Jun 1, 2027.
≥ 8 mo- Earliest retirement
- ≥ 230 daysJun 1, 2027 · Amazon Bedrock
- Arena Text
- 1,482#15 of 128 · Arena
- GPQA Diamond
- 90.7%#31 of 108 · Epoch AI
- List price · $ per 1M
- $5.00 in $30.00 outOpenAI API · cached input $0.50
- Context window
- 1.1MMax output 128K tokens
Dates on every platform
3 listings · a floor is the earliest possible date
| Platform | Model ID and status | Deprecated | Shuts down | Replacement |
|---|---|---|---|---|
| OpenAI APIOpenAI: List models (GET /v1/models) (opens in a new tab) · checked Oct 14, 2026 | gpt-5.5Active · also gpt-5.5-2026-04-23 | – | None set | – |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | gpt-5.5:2026-04-24Active | – | 12 mo | – |
| Amazon BedrockAmazon Web Services: Amazon Bedrock ListFoundationModels, us-east-1 (opens in a new tab) · checked Oct 14, 2026 | openai.gpt-5.5Active · also global.openai.gpt-5.5, us.openai.gpt-5.5 | – | ≥ 8 moNot sooner than | – |
In us-east-1, requests go through a cross-Region inference profile (listed in aliases).
What breaks when you move off GPT-5.5
No breaking changes are recorded for GPT-5.5.
Intelligence
Third-party results, credited below
| Benchmark | Publisher | Score | Rank | Published |
|---|---|---|---|---|
| Arena Text | Arena | 1,482 ± 2 | #15 of 128 | Oct 8, 2026 |
| GPQA Diamond | Epoch AI | 90.7% ± 1.8% | #31 of 108 | May 5, 2026 |
| Arena Agent | Arena | 0 ± 0 | #13 of 35 | Oct 12, 2026 |
| FrontierMath Tier 4 | Epoch AI | 72.5% ± 7.1% | #11 of 58 | Jun 11, 2026 |
| FrontierMath Tiers 1-3 | Epoch AI | 85.3% ± 2.1% | #12 of 71 | Jun 11, 2026 |
| OTIS Mock AIME 2024-2025 | Epoch AI | 84.4% ± 5.5% | #56 of 105 | Aug 7, 2026 |
| SimpleQA Verified | Epoch AI | 63.0% ± 1.5% | #14 of 68 | Aug 27, 2026 |
Arena (arena.ai), https://arena.ai/leaderboard
Epoch AI, ‘Capabilities & benchmarking’. Published online at epoch.ai. Retrieved from ‘https://epoch.ai/benchmarks’ [online resource].
List prices
$ per 1M tokens, with each price’s source
| Platform | Input | Cached | Output | In effect | Source |
|---|---|---|---|---|---|
OpenAI APIgpt-5.5 | $5.00 | $0.50 | $30.00 | Oct 14, 2026Current · Requests over 272K input tokens are billed at higher long-context rates. Batch and Flex bill less; Fast mode bills more. | OpenAI: Pricing (opens in a new tab) |
Azure AI Foundrygpt-5.5:2026-04-24 | $5.00 | $0.50 | $30.00 | May 1, 2026Current · Global Standard short-context rate from the US East 2 price list. | Microsoft: Azure Retail Prices API (Foundry Models, US East 2) (opens in a new tab) |
Amazon Bedrockopenai.gpt-5.5 | $5.50 | $0.55 | $33.00 | Oct 14, 2026Current · Standard tier, short context (272K input tokens or fewer). In-Region. Longer requests are billed at higher rates. | Amazon Web Services: Amazon Bedrock model card: GPT-5.5 (opens in a new tab) |