All prices › OpenAI › GPT-3.5 Turbo
GPT-3.5 Turbo API pricing
As of October 16, 2026, GPT-3.5 Turbo costs $0.50 per million input tokens and $1.50 per million output tokens on the OpenAI API. OpenAI plans to retire it on October 23, 2026.
Retires Oct 23
It is the 9th cheapest of 36 OpenAI models tracked here, by blended price. The closest Budget-tier model from another provider is Mistral Large 3 (Mistral) at $0.50 / $1.50, the same blended price. Same list price as Mistral Large 3. Its price has been cut 1 time and raised 0 times since.
Input / 1M tokens$0.50
Output / 1M tokens$1.50
Context window16K
Max output4K
Every published rate
| Rate | Per 1M tokens |
|---|---|
| Input (standard) | $0.50 |
| Output (standard) | $1.50 |
What it costs in practice
| Task | Tokens | Per request | Per 1,000 requests |
|---|---|---|---|
| Chatbot reply | 1,000 in / 500 out | $0.0013 | $1.25 |
| Summarize a long document | 20,000 in / 1,000 out | $0.01 | $11.50 |
| Coding agent step | 50,000 in / 2,000 out | $0.03 | $28.00 |
Standard rates, no caching or batch discount. Compare your own numbers across all models →
Price history
| Date | Model | Change |
|---|---|---|
| 2025-09-25 | GPT-3.5 Turbo | Output price: $2.00 → $1.50 (-25%) source |
| 2025-09-25 | GPT-3.5 Turbo | Input price: $1.50 → $0.50 (-67%) source |
| 2024-03-07 | GPT-3.5 Turbo | Context window: 4K → 16K (+300%) source |
| 2024-01-09 | GPT-3.5 Turbo | Context window: – → 4K source |
Dates are when each change first appeared in the LiteLLM price data, usually within days of the provider's announcement.
Details
| Provider | OpenAI |
| Price tier | Budget |
| Features | Prompt caching, Tool use |
| API model names | gpt-3.5-turbo, gpt-3.5-turbo-0125 |
| Retirement date | October 23, 2026 |
| Official pricing | developers.openai.com |
Models at a similar price
| Model | Input / 1M | Output / 1M |
|---|---|---|
| GPT-5 Mini | $0.25 | $2.00 |
| GPT-4.1 Mini | $0.40 | $1.60 |
| Mistral Large 3 | $0.50 | $1.50 |
| Gemini 2.5 Flash | $0.30 | $2.50 |
| Gemini 3.5 Flash Lite | $0.30 | $2.50 |
| DeepSeek R1 | $0.55 | $2.19 |
Other OpenAI models
| Model | Input / 1M | Output / 1M |
|---|---|---|
| GPT-4 | $30.00 | $60.00 |
| GPT-5.6 Cyber | $12.50 | $75.00 |
| GPT-5.5 Cyber | $12.50 | $75.00 |
| o1 | $15.00 | $60.00 |
| GPT-6 Astra | $10.00 | $50.00 |
| GPT-4 Preview | $10.00 | $30.00 |
| GPT-4 Turbo | $10.00 | $30.00 |
| GPT-5.5 | $5.00 | $30.00 |
| GPT-Rosalind Research | $5.00 | $25.00 |
| GPT-Rosalind Discovery | $5.00 | $25.00 |
| GPT-5.6 | $4.00 | $20.00 |
| GPT-5.6 Sol | $4.00 | $20.00 |
| GPT-5.4 | $2.50 | $15.00 |
| GPT-5.2 | $1.75 | $14.00 |
| GPT-5.6 Terra | $2.00 | $12.00 |
| GPT-4o | $2.50 | $10.00 |
| GPT-6 Sol | $2.00 | $10.00 |
| GPT-6.1 Sol | $2.00 | $10.00 |
| GPT-4.1 | $2.00 | $8.00 |
| o3 | $2.00 | $8.00 |
| GPT-5 | $1.25 | $10.00 |
| GPT-5.1 | $1.25 | $10.00 |
| GPT-5 Search API | $1.25 | $10.00 |
| GPT-3.5 Turbo 16K | $3.00 | $4.00 |
| o3 Mini | $1.10 | $4.40 |
| o4 Mini | $1.10 | $4.40 |
| GPT-5.4 Mini | $0.75 | $4.50 |
| GPT-4.1 Mini | $0.40 | $1.60 |
| GPT-5 Mini | $0.25 | $2.00 |
| GPT-5.4 Nano | $0.20 | $1.25 |
| GPT-5.6 Luna | $0.20 | $1.20 |
| GPT-4o Mini | $0.15 | $0.60 |
| GPT-6 Luna | $0.10 | $0.50 |
| GPT-4.1 Nano | $0.10 | $0.40 |
| GPT-5 Nano | $0.05 | $0.40 |