GPT Chat Latest points to OpenAI's stable API alias chat-latest that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates in the future, they are routed behind this slug automatically.
For more info, see: https://developers.openai.com/api/docs/models/chat-latestOpens in new tab
Modalities
In / Out Price
$5 / $30per 1M
Context
400K
Released
May 5, 2026
This model is hosted by one provider. OpenRouter forwards every request to it directly — no routing decisions to make.
The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.
Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).
Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.
Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.
Token volume and request traffic to this model over time.
Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.
| $5.00 | $30.00 | $0.50 | 1.30s | 52 tps |
Throughput
52tok/s
P50, best across providers
Latency
1.30s
P50, best provider
100.00%
99.96%
When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.
GPT Chat Latest points to OpenAI's stable API alias chat-latest that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates in the future, they are routed behind this slug automatically. For more info, see: https://developers.openai.com/api/docs/models/chat-latestOpens in new tab
GPT Chat Latest costs $5.00/M input tokens and $30.00/M output tokens, with separate rates for Cache Read at $0.50/M tokens and Web Search at $10.00/1K calls.
GPT Chat Latest has a 400,000 token context window. It supports up to 128,000 completion tokens.
Yes. GPT Chat Latest accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
GPT Chat Latest accepts text, images, and files such as PDFs as input and returns text.
GPT-6 Astra, GPT-6 Astra Pro, GPT-5.6 Luna Pro and 55 more are other text models from OpenAI.
GPT Chat Latest was released on May 5, 2026.
