# Claude API vs DeepInfra

> Claude API scores 77.3 (BB) on agent readiness against DeepInfra's 63 (B), and leads in 6 of 7 scored categories. DeepInfra leads on reliability. Both do llm inference. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra
- Markdown: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.md (~2,350 tokens)
- Slim: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Claude API scores 77.3 (BB) on agent readiness against DeepInfra's 63 (B), and leads in 6 of 7 scored categories. DeepInfra leads on reliability. Both do llm inference.

- Claude API: grade BB, 77.3/100, rank #20 of 842. Markdown https://www.anchorterminal.com/tools/anthropic-api.md · JSON https://www.anchorterminal.com/api/v1/tools/anthropic-api.json
- DeepInfra: grade B, 63/100, rank #371 of 842. Markdown https://www.anchorterminal.com/tools/deepinfra.md · JSON https://www.anchorterminal.com/api/v1/tools/deepinfra.json

## Which one, for what

### Claude API (BB)

Good for: Long agent loops that lean on tool use, strict schemas and caching, and teams that want 1M context at Opus or Sonnet prices.

Ahead on:
- Schema & documentation, 90 against 69
- Agent ergonomics, 95 against 77
- Security & auth, 92 against 64
- Payments & pricing, 30 against 20
- Maintenance & community, 91 against 65
- Transparency & trust, 85 against 67

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026

### DeepInfra (B)

Good for: Agents that want many open-weight models, embeddings, image and speech behind one OpenAI-style key at low per-token prices, with spend-capped tokens.

Ahead on:
- Reliability, 70 against 60

Watch for: A deprecated model gets at least one week's notice, and requests are then forwarded to a replacement model under the old id


## Score by category

| Category | Weight | Claude API | DeepInfra | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 70 | DeepInfra +10 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 69 | Claude API +21 |
| Agent ergonomics | 13% (16.2 this run) | 95 | 77 | Claude API +18 |
| Security & auth | 14% (17.5 this run) | 92 | 64 | Claude API +28 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | Claude API +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 91 | 65 | Claude API +26 |
| Transparency & trust | 7% (8.8 this run) | 85 | 67 | Claude API +18 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **77.3 · BB** | **63 · B** | |

## Facts side by side

| Fact | Claude API | DeepInfra |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Anthropic | Deep Infra Inc. |
| Hosted endpoint | `https://api.anthropic.com/v1/messages` | `https://api.deepinfra.com/v1/openai` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | MIT (SDKs) | Proprietary service under the DeepInfra Terms of Service. The Python and Node SDKs and the docs repository are MIT |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-10-07 |
| Terms last updated | no date given | 2026-08-17 |
| Privacy policy last updated | no date given | 2026-08-15 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 3.9k stars | 21 stars, 1.2k npm/wk, 50 PyPI/wk |

## Verdicts

**Claude API.** Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.

**DeepInfra.** The model list, context sizes and per-token prices are readable without a key, and keys can carry an IP allowlist, a monthly spending cap and model-limited JWTs. Deprecated models get one week's notice and are then redirected to another model, there is no changelog or SLA, and an account needs a card or prepayment before any call.

## Before you call either

### Claude API

1. Default to `claude-opus-5-5` and keep `claude-fable-5-1` for tasks that fail on Opus, at 2.5 times the price
2. Don't send `tool_choice` any or tool to Opus 5.5, Sonnet 5.5 or Fable 5.1. Use auto with `strict: true` on the tool
3. Put `cache_control` on the system prompt and tool list. Reads cost 0.05x input on Opus 5.5
4. Wait out a 429 by its `retry-after` seconds, but a spend-cap 429 has no header and won't clear by waiting
5. Move off `claude-sonnet-4-5-20250929` before 2026-11-30. Retired ids fail, they don't redirect

### DeepInfra

1. Call `GET https://api.deepinfra.com/v1/openai/models` at start-up for ids, context sizes and prices. No key is needed
2. Check the `model` field of each response. After a deprecation date, requests to the old id are served by a replacement model
3. Ask the account owner for a scoped JWT limited to the models and spend the task needs, not the full API key
4. Stay under 200 concurrent requests per model. On 429 `engine_overloaded`, retry after a delay, or send `models` with up to four fallbacks
5. Never inspect a JWT with `GET /v1/scoped-jwt?jwtoken=`, which puts the token in the URL. Keep credentials in the `Authorization` header

## Questions

### Which is better for AI agents, Claude API or DeepInfra?

Claude API scores 77.3 (BB) on agent readiness against DeepInfra's 63 (B), and leads in 6 of 7 scored categories. DeepInfra leads on reliability.

### Do Claude API and DeepInfra need an API key?

Both need an API key.

### Can an agent call Claude API and DeepInfra without installing anything?

Yes. Claude API has a hosted endpoint at https://api.anthropic.com/v1/messages and DeepInfra at https://api.deepinfra.com/v1/openai.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.json, and with the fewest tokens: https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "anthropic-api", "b": "deepinfra"}`. From a terminal: `anchor compare anthropic-api deepinfra`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/anthropic-api.json and https://www.anchorterminal.com/api/v1/tools/deepinfra.json

## Other comparisons with Claude API or DeepInfra

- [Claude API vs Antseed](https://www.anchorterminal.com/compare/anthropic-api-vs-antseed.md)
- [Claude API vs BlockRun.AI](https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai.md)
- [Claude API vs DeepSeek API](https://www.anchorterminal.com/compare/anthropic-api-vs-deepseek-api.md)
- [Claude API vs Gemini Developer API](https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-api.md)
- [Claude API vs GroqCloud](https://www.anchorterminal.com/compare/anthropic-api-vs-groq.md)
- [Claude API vs Mistral AI API](https://www.anchorterminal.com/compare/anthropic-api-vs-mistral-api.md)
- [Claude API vs OpenAI API](https://www.anchorterminal.com/compare/anthropic-api-vs-openai-api.md)
- [Claude API vs OpenRouter](https://www.anchorterminal.com/compare/anthropic-api-vs-openrouter.md)
- [Claude API vs Prism Inference](https://www.anchorterminal.com/compare/anthropic-api-vs-prism-inference.md)
- [Claude API vs SambaCloud](https://www.anchorterminal.com/compare/anthropic-api-vs-sambanova.md)
- [Antseed vs DeepInfra](https://www.anchorterminal.com/compare/antseed-vs-deepinfra.md)
- [BlockRun.AI vs DeepInfra](https://www.anchorterminal.com/compare/blockrun-ai-vs-deepinfra.md)
- [DeepInfra vs DeepSeek API](https://www.anchorterminal.com/compare/deepinfra-vs-deepseek-api.md)
- [DeepInfra vs Gemini Developer API](https://www.anchorterminal.com/compare/deepinfra-vs-gemini-api.md)
- [DeepInfra vs GroqCloud](https://www.anchorterminal.com/compare/deepinfra-vs-groq.md)
- [DeepInfra vs Mistral AI API](https://www.anchorterminal.com/compare/deepinfra-vs-mistral-api.md)
- [DeepInfra vs OpenAI API](https://www.anchorterminal.com/compare/deepinfra-vs-openai-api.md)
- [DeepInfra vs OpenRouter](https://www.anchorterminal.com/compare/deepinfra-vs-openrouter.md)
- [DeepInfra vs Prism Inference](https://www.anchorterminal.com/compare/deepinfra-vs-prism-inference.md)
- [DeepInfra vs SambaCloud](https://www.anchorterminal.com/compare/deepinfra-vs-sambanova.md)

## Disclosure

- Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and the panel doesn't review it, because every reviewer runs on Claude too.