GPT-4
Shutting down. GPT-4 shuts down on the OpenAI API on Oct 23, 2026. OpenAI names GPT-5.6 Sol as the replacement.
9 days- Next shutdown
- 9 daysOct 23, 2026 · OpenAI API
- Arena Text
- 1,288#115 of 128 · Arena
- GPQA Diamond
- 35.7%#102 of 108 · Epoch AI
- List price · $ per 1M
- $30.00 in $60.00 outOpenAI API
- Context window
- 8.2KMax output 8.2K tokens
Dates on every platform
| Platform | Model ID and status | Deprecated | Shuts down | Replacement |
|---|---|---|---|---|
| OpenAI APIOpenAI: Deprecations (opens in a new tab) · checked Oct 14, 2026 | gpt-4-0613Deprecated · also gpt-4, gpt-4-0613-completions, gpt-4-completions | 9 days | GPT-5.6 Sol |
Fine-tuned versions of this model follow the same shutdown date.
What breaks when you move off GPT-4
- Parameters
- Defaults
- Pricing
Intelligence
| Benchmark | Publisher | Score | Rank | Published |
|---|---|---|---|---|
| Arena Text | Arena | 1,288 ± 2 | #115 of 128 | Oct 8, 2026 |
| GPQA Diamond | Epoch AI | 35.7% ± 2.4% | #102 of 108 | Oct 23, 2025 |
| OTIS Mock AIME 2024-2025 | Epoch AI | 1.1% ± 0.5% | #104 of 105 | Oct 23, 2025 |
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
| Platform | Input | Cached | Output | In effect | Source |
|---|---|---|---|---|---|
OpenAI APIgpt-4-0613 | $30.00 | – | $60.00 | Oct 14, 2026Current | OpenAI: Pricing (opens in a new tab) |
Change history
ShutdownLegacy GPT and o-series snapshots shut down on the OpenAI APIOpenAI API3 breaks
Requests to gpt-3.5-turbo-0125, gpt-4-0613, gpt-4-turbo, gpt-4.1-nano, gpt-4o-2024-05-13, o1, o1-pro, o3-mini and o4-mini, and their aliases, fail after the shutdown date. OpenAI names GPT-5.6 Sol, Terra or Luna as the substitute for each. Fine-tuned gpt-3.5-turbo, gpt-4, gpt-4.1-nano and o4-mini models shut down the same day.
- Platform
- OpenAI API
- Models
- GPT-3.5 Turbo, GPT-4, GPT-4 Turbo, GPT-4.1 nano, GPT-4o, o1, o1-pro, o3-mini, o4-mini
- Announced
- ParametersPro snapshots move to gpt-5.6-sol with reasoning.mode set to pro. There is no separate Pro model ID for GPT-5.6.
- DefaultsGPT-5.6 models reuse reasoning across turns by default (reasoning.context all_turns); earlier models default to current_turn.
- PricingGPT-5.6 bills cache writes at 1.25 times the uncached input rate. Replace prompt_cache_retention with prompt_cache_options.ttl.
Source: OpenAI, Deprecations (opens in a new tab); OpenAI, Using GPT-5.6 (opens in a new tab)