200k Context AI
Massive context window with 99.5% retrieval accuracy for large document processing.

file
text
File Analysis
curl --request POST "https://gptproto.com/v1/messages" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--header "anthropic-version: 2023-06-01" \
--data '{
"model": "claude-haiku-4-5-20251001",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": [
{
"type": "text",
"text": "Please analyze this PDF document and provide a summary of its content"
},
{
"type": "document",
"source": {
"type": "url",
"url": "https://tos.gptproto.com/resource/gptproto.pdf"
}
}
]
}
]
}'Explore why developers choose AI Claude Haiku 4.5. It combines 200k context recall with native multimodal parsing and superior instruction adherence for complex agents.
Massive context window with 99.5% retrieval accuracy for large document processing.

Natively handles audio and 4K images, bringing visual intelligence to the 4.5 family.

Fine-tuned to reduce hallucinated tool parameters in complex, multi-step logical chains.

Engineered for speed, this AI delivers a near-instant response even under heavy load.

Getting a claude-haiku-4-5-20251001 API key takes four steps and a few minutes. Create a free GPTProto account, add credits, generate your key, and make your first call — at $0.8 / $4 it's a cheaper claude-haiku-4-5-20251001 API key than going direct, and one key works across every model on the platform. Full claude-haiku-4-5-20251001 Documentation is in the docs.

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