GPT Chat Latest
by OpenAIopenai/gpt-chat-latest
LLMCompare cannot run GPT Chat Latest yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowGPT Chat Latest at a glance
- Context length
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Accepts
- Text, Image, File
- Returns
- Text
- Features
- JSON outputTool callingPrompt cachingImage input
- Reasoning effort levels
- Not supported
- Released
- 5 May 2026
- Knowledge cutoff
- Not published
Model facts synced from the OpenRouter model list on 21 Oct 2026.
GPT Chat Latest pricing by route
A route is the service LLMCompare calls to reach the model. GPT Chat Latest has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $5.00 | $30.00 | $0.50 | openrouter.ai/openai/gpt-chat-latest |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to GPT Chat Latest costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
- Cost per call
- $0.02
- 24 credits
- Cost of 100 calls
- $2.00
- 2,400 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
max_tokens | Integer | 1 to 128,000 | Provider default |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
About GPT Chat Latest
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...
Description as published for this model. LLMCompare has not edited it.
Models to compare with GPT Chat Latest
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
GPT-5.5OpenAIopenai/gpt-5.5 | 1.05M | 128k | $5.00 | $30.00 | ReasoningJSONToolsCacheVision | No route yet | ||
GPT-4 TurboOpenAIopenai/gpt-4-turbo | 128k | 4.1k | $10.00 | $30.00 | JSONToolsVision | No route yet | ||
GPT-5.6 Sol ProOpenAIopenai/gpt-5.6-sol-pro | 1.05M | 128k | $4.00 | $20.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Fugu Ultra v2Sakanasakana/fugu-ultra-v2 | 1M | 128k | $5.00 | $30.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Fugu UltraSakanasakana/fugu-ultra | 1M | 128k | $5.00 | $30.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Claude Opus 5Anthropicanthropic/claude-opus-5 | 1M | 128k | $5.00 | $25.00 | ReasoningJSONToolsCacheVision | No route yet |
Questions about GPT Chat Latest
- How much does GPT Chat Latest cost?
- On the OpenRouter route, GPT Chat Latest costs $5.00 per 1 million input tokens and $30.00 per 1 million output tokens, in US dollars. Input tokens that GPT Chat Latest reads from the prompt cache cost $0.50 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of GPT Chat Latest?
- GPT Chat Latest has a context length of 400,000 tokens and returns up to 128,000 output tokens in one call.
- What inputs does GPT Chat Latest accept?
- GPT Chat Latest accepts these inputs: Text, Image, File. GPT Chat Latest returns: Text.
- Can I test GPT Chat Latest on my own data?
- Not yet. LLMCompare lists the prices and parameters of GPT Chat Latest, but no route to GPT Chat Latest is configured on LLMCompare, so it cannot be selected for an evaluation.