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whit3rabbitandClaude Opus 4.6
f2e3ed15f4
Rust workspace with two crates: - translator: pure, IO-free mapping between Anthropic Messages API and OpenAI Chat Completions - proxy: axum HTTP server with auth, streaming SSE, retry/backoff, concurrency limits 169 tests passing (unit, golden fixture, integration). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
55 lines
1.4 KiB
Markdown
55 lines
1.4 KiB
Markdown
# File and Document Handling Differences
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## Anthropic Document Blocks
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Anthropic supports inline documents in message content:
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```json
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{
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"type": "document",
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"source": {
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"type": "base64",
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"media_type": "application/pdf",
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"data": "<base64>"
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},
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"title": "report.pdf"
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}
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```
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Also supports image blocks with base64 or URL sources.
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## OpenAI File Handling
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### Chat Completions
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- Supports `image_url` content parts (URL or data URI)
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- No inline document/PDF support
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- Files must be uploaded separately via `/v1/files` API
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### Responses API
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- Supports `input_file` with `file_data` (base64), `file_id`, or `file_url`
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- This would be the ideal target for document translation
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## Current Translation
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| Anthropic Block | OpenAI Translation | Fidelity |
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| Image (base64) | `image_url` with data URI | Full |
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| Image (URL) | `image_url` with URL | Full |
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| Document (base64 PDF) | Text note placeholder | Lossy |
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### Document Translation Detail
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Since the proxy targets Chat Completions (not Responses), documents are converted to a text note:
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```
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[Attached report.pdf: application/pdf (12345 bytes base64)]
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```
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This is a known limitation. Full document support would require targeting the Responses API with `input_file.file_data`.
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## Size Limits
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| Provider | Limit |
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|---|---|
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| Anthropic Messages | 32 MB |
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| Anthropic Batch | 256 MB |
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| Proxy | 32 MB (enforced at edge) |
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