How much does the GPT-4o API cost?

GPT-4o costs $2.5 per 1M input tokens and $10 per 1M output tokens on Inferray, and cached input is $1.25 per 1M. That is the list price, with no gateway fee on top.

Is there a free tier for GPT-4o?

No. You add credit and pay GPT-4o's list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.

Am I charged for failed requests?

No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.

Is GPT-4o included in Token Plans?

No. GPT-4o is pay-as-you-go only; Token Plans cover the other text models in the catalog.

Can I use GPT-4o in Claude Code?

Yes. Set ANTHROPIC_BASE_URL to https://api.inferray.com, ANTHROPIC_AUTH_TOKEN to your Inferray key, and ANTHROPIC_MODEL to gpt-4o. The same key works in Codex, opencode, Cline, and other agents.

Does GPT-4o support tool calling and vision?

GPT-4o supports tool calling, image input, JSON output and streaming on Inferray.

Is it the real GPT-4o?

Yes. A request for gpt-4o is answered by GPT-4o from OpenAI, billed at its published list price. Inferray never substitutes a different or smaller model.

OpenAIChatgpt-4o

GPT-4o API

Input: $2.5per 1M tokens
Output: $10per 1M tokens
Cached input: $1.25per 1M tokens
Context: 128K

No gateway feesEvery OpenAI model's pricePay-as-you-go only

GPT-4o for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.

Explore GPT-4o for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses through the unified API. Supported interfaces and current availability are shown below.

OpenAI-style Chat Completions
Anthropic-style Messages
OpenAI-style Responses

Get your API key Try in playground Compare models

Model details

Context window: 128K tokens
Max output: 16K tokens
Input: Text, images
Output: Text
Capabilities: Vision, Tool calling, Streaming, JSON output
Interfaces: OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses

GPT-4o API pricing

Prices use the units shown below. No gateway fees. Usage, size and model options may affect the total.

GPT-4o pricing.
Metric	Price
/ 1M input tokens	$2.5
/ 1M output tokens	$10
/ 1M cached input tokens	$1.25
/ 1M image input tokens	$5530

What GPT-4o costs for real work

Typical workloads at list price, worked out from the rates above. Nothing is added on top.

Workload	Tokens	Cost
1,000 chat replies	1,500 tokens in, 400 out, each	$7.75
Summarise a 100-page document	60K tokens in, 2K out	$0.170
10M tokens of coding-agent work	10M tokens: 85% cached input, 12% fresh input, 3% output	$16.63
1M output tokens	Generated text only	$10.00

GPT-4o is pay-as-you-go only

GPT-4o is not included in Token Plans. Call it from a pay-as-you-go balance at the list price above, with no gateway fee.

Why teams pick it

GPT-4o for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.

Call GPT-4o

GPT-4o answers on any of the APIs below — pick the one your code already speaks and just swap in your Inferray key.

/v1/chat/completionsOpenAI-style Chat Completions · openai SDK or plain HTTP

curl https://api.inferray.com/v1/chat/completions \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt-4o",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

/v1/messagesAnthropic-style Messages · @anthropic-ai/sdk SDK or plain HTTP

curl https://api.inferray.com/v1/messages \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt-4o",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

/v1/responsesOpenAI-style Responses · openai SDK or plain HTTP

curl https://api.inferray.com/v1/responses \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt-4o",
  "input": "Hello"
}'

Conversation compaction is also available at POST /v1/responses/compact.

Use GPT-4o in your tools

Every coding agent below has a setup guide. Set the model to gpt-4o.

Run GPT-4o in Claude Code

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Alternatives to GPT-4o

Questions about this model

How much does the GPT-4o API cost?: GPT-4o costs $2.5 per 1M input tokens and $10 per 1M output tokens on Inferray, and cached input is $1.25 per 1M. That is the list price, with no gateway fee on top.
Is there a free tier for GPT-4o?: No. You add credit and pay GPT-4o's list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.
Am I charged for failed requests?: No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.
Is GPT-4o included in Token Plans?: No. GPT-4o is pay-as-you-go only; Token Plans cover the other text models in the catalog.
Can I use GPT-4o in Claude Code?: Yes. Set ANTHROPIC_BASE_URL to https://api.inferray.com, ANTHROPIC_AUTH_TOKEN to your Inferray key, and ANTHROPIC_MODEL to gpt-4o. The same key works in Codex, opencode, Cline, and other agents.
Does GPT-4o support tool calling and vision?: GPT-4o supports tool calling, image input, JSON output and streaming on Inferray.
Is it the real GPT-4o?: Yes. A request for gpt-4o is answered by GPT-4o from OpenAI, billed at its published list price. Inferray never substitutes a different or smaller model.

Prices from the catalog as of November 12, 2026.