GPT-3.5 Turbo
GPT-3.5 Turbo is a legacy integration reference; evaluate GPT-4.1 Mini before starting new work.
- Family
- GPT-3.5
- Released
- 2023-03-01
- Context
- 16K
- Parameters
- 20B
- Architecture
- Decoder Only
- Knowledge cutoff
- 2021-09
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
- Training
- Fine-tuned
Cheapest of 5 routes · Azure OpenAI
This model is deprecated. OpenAI recommends switching to GPT-4.1 Mini.
About
GPT-3.5 Turbo is an advanced language model developed by OpenAI, showcasing significant advancements over GPT-3 and GPT-3.5. As the engine behind the popular ChatGPT application, it excels in tasks like text generation, translation, question answering, summarization, and code generation. This model employs Reinforcement Learning from Human Feedback (RLHF) to enhance accuracy and produce policy-optimized responses. Despite its prowess, it has a knowledge cutoff of September 2021 and can demonstrate biases from its training data. Occasionally, it may generate incorrect or nonsensical content, known as "hallucination," and is sensitive to input phrasing variations.
Providers(5)
Compare all 5Compare API pricing across 5 tracked provider routes for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Batch in / out | Route |
|---|---|---|---|---|
| Azure OpenAI | $0.500 | $1.50 | - | Serverless |
| OpenAI API | $0.500 | $1.50 | $0.250 / $0.750 | Serverless |
| OpenRouter | $0.500 | $1.50 | - | Serverless |
| Replicate API | $0.500 | $1.50 | - | Serverless |
| Vercel AI Gateway | $0.500 | $1.50 | - | Serverless |
Deprecated provider routes(1)
| Provider | Status | Catalog ID |
|---|---|---|
| Salesforce Models API | Deprecated | — |
Available via routers & gateways(16)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Azure AI Foundry Model Router
RouterMicrosoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Capabilities
Benchmark peer barsfor Coding
Benchmark scores(3)
Migration checks
No linked migration route is available for this model yet.
API versions
gpt-3.5-turbo-0301gpt-3.5-turbo-0613gpt-3.5-turbo-1106gpt-3.5-turbo-0125gpt-3.5-turboCheapest of 5 routes · Azure OpenAI