OpenAI model

O3

O3 is a OpenAI model listed in the NextModel catalog for image understanding, multimodal chat workloads. Its listed price is $2 / 1M tokens input and $8 / 1M tokens output, with a 200k token context window.

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OpenAIPlatform curatedCatalog
ThinkingFunction CallingVision
Input price$2 / 1M tokens
Output price$8 / 1M tokens
Context length200k tokens
Max output8.2k tokens

What is O3 in NextModel?

O3 is a OpenAI model listed in the NextModel catalog for image understanding, multimodal chat workloads. Its listed price is $2 / 1M tokens input and $8 / 1M tokens output, with a 200k token context window.

O3 via NextModel: 200k-token context; $2 / 1M tokens in / $8 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Best use cases

  • image understanding
  • multimodal chat

OpenAI-compatible code example

request.sh
curl https://api.nextmodel.app/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $NEXTMODEL_API_KEY" \
  -d '{"model":"openai/o3","messages":[{"role":"user","content":"Reply with OK."}]}'

Switching models only changes the model field.

Try it in the playground

Similar alternatives

OpenAICatalogHealthytypical

GPT-4.1

GPT-4.1 via NextModel: 1M-token context; $2 / 1M tokens in / $8 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$2 / 1M tokensInput$8 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
OpenAICatalogHealthyfast

GPT-4.1 Mini

GPT-4.1 Mini via NextModel: 1M-token context; $0.4 / 1M tokens in / $1.60 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$0.4 / 1M tokensInput$1.60 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
OpenAICatalogHealthyfast

GPT-4.1 Nano

GPT-4.1 Nano via NextModel: 1M-token context; $0.1 / 1M tokens in / $0.4 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$0.1 / 1M tokensInput$0.4 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details

Compare O3

O3 vs GPT-4.1O3 vs GPT-4.1 MiniO3 vs GPT-4.1 NanoO3 vs GPT-4oO3 vs GPT-4o-mini

Reading

Articles that explain O3

FAQ

O3 API questions

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