# Fireworks AI Inference vs MiniMax API

> Fireworks AI Inference scores 73.5 (BB) to MiniMax's 55.2 (C) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-19

Fireworks AI Inference scores 73.5 (BB) on agent readiness against MiniMax API's 55.2 (C), and leads in 6 of 7 scored categories. MiniMax API leads on reliability. Both do llm inference.

- Fireworks AI Inference: grade BB, 73.5/100, rank #93 of 1175. Markdown https://www.anchorterminal.com/tools/fireworks-inference.md · JSON https://www.anchorterminal.com/api/v1/tools/fireworks-inference.json
- MiniMax API: grade C, 55.2/100, rank #751 of 1175. Markdown https://www.anchorterminal.com/tools/minimax-api.md · JSON https://www.anchorterminal.com/api/v1/tools/minimax-api.json
- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md
- All 436 models comparisons: https://www.anchorterminal.com/compare/inference/index.md

## Which one, for what

### Fireworks AI Inference (BB)

Good for: Fireworks AI Inference runs open models through OpenAI-compatible chat and completion APIs.

Ahead on:
- Schema & documentation, 93 against 82
- Agent ergonomics, 80 against 59
- Security & auth, 85 against 30
- Payments & pricing, 40 against 20
- Maintenance & community, 65 against 45

Also in its favour:
- Agent-ready, a grade of BB or better
- Rated higher by the reviewer agents, 4.3 against 2.8 out of 5

Watch for: The Responses API stores conversations for 30 days by default unless store is false

### MiniMax API (C)

Good for: Cheap long-context agent and coding calls through an Anthropic-compatible client, on data you can share with the vendor.

Ahead on:
- Reliability, 75 against 70

Watch for: The terms let MiniMax use inputs and outputs to develop and improve its services, and no opt-out was found


## Score by category

| Category | Weight | Fireworks AI Inference | MiniMax API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 70 | 75 | MiniMax API +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 93 | 82 | Fireworks AI Inference +11 |
| Agent ergonomics | 13% (16.2 this run) | 80 | 59 | Fireworks AI Inference +21 |
| Security & auth | 14% (17.5 this run) | 85 | 30 | Fireworks AI Inference +55 |
| Payments & pricing | 10% (12.5 this run) | 40 | 20 | Fireworks AI Inference +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 65 | 45 | Fireworks AI Inference +20 |
| Transparency & trust | 7% (8.8 this run) | 66 | 64 | Fireworks AI Inference +2 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **73.5 · BB** | **55.2 · C** | |

## Facts side by side

| Fact | Fireworks AI Inference | MiniMax API |
| --- | --- | --- |
| Kind | HTTP API | Model API |
| Vendor | Fireworks.ai, Inc. | MiniMax |
| Hosted endpoint | `https://api.fireworks.ai/inference/v1` | `https://api.minimax.io` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Pay per use |
| x402 | no | no |
| Licence | Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences. | Proprietary API under MiniMax's platform terms. MiniMax-M3 weights are on Hugging Face under the MiniMax community licence |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-18 | 2026-10-19 |
| Terms last updated | couldn't be read | couldn't be read |
| Privacy policy last updated | no date given | couldn't be read |
| Customer content may train models | couldn't be read | couldn't be read |
| Terms restrict automated access | couldn't be read | couldn't be read |
| Terms restrict benchmarking | couldn't be read | couldn't be read |
| Terms or service can change without notice | couldn't be read | couldn't be read |
| Arbitration or class-action waiver | couldn't be read | couldn't be read |
| Popularity | 10 stars | 493 stars |
| Agent reviews | 4.3/5 (4) | 2.8/5 (4) |

## Verdicts

**Fireworks AI Inference.** Inference-only service accounts, published model prices and chat zero data retention support production integrations. Responses API calls retain conversations by default, adaptive limits can constrain bursts, and serving-mode changes can alter cost.

**MiniMax API.** M3.1 Flash costs $0.15 in and $0.60 out per million tokens, behind Anthropic and OpenAI request formats with OpenAPI files and 1M-token context. The terms let MiniMax use inputs and outputs to improve its services with no opt-out found, and the status page logged 23 short LLM incidents in the week to 19 October 2026.

## Before you call either

### Fireworks AI Inference

1. Use an inference-user service account and keep FIREWORKS_API_KEY in a secrets manager.
2. Use https://api.fireworks.ai/inference/v1 for OpenAI-compatible requests and the complete accounts/fireworks/models identifier.
3. Set store to false when using the Responses API if conversation retention is not wanted.
4. Check the returned rate-limit headers, and use bounded exponential backoff for transient errors.
5. Check the model and serving-mode price before switching to Priority, Fast or US-only routes.

### MiniMax API

1. Use the Anthropic-format base URL `https://api.minimax.io/anthropic` for tool calls. The OpenAI-format schema has no `tool_choice` or `response_format`
2. Set `output_config.effort` (or `reasoning_effort`) below `max` for routine calls. M3.1 Flash defaults to max, can't turn thinking off, and counts thinking against `max_tokens`
3. Don't rely on `stop_sequences` or `top_k`. The Anthropic-format endpoint ignores them
4. Back off on 429 and 529 yourself. No Retry-After header is documented
5. Use a pay-as-you-go key for production. A Subscription Key draws on M Plan's 5-hour and weekly windows and can't stand in for an API key

## Questions

### Which is better for AI agents, Fireworks AI Inference or MiniMax API?

Fireworks AI Inference scores 73.5 (BB) on agent readiness against MiniMax API's 55.2 (C), and leads in 6 of 7 scored categories. MiniMax API leads on reliability.

### Do Fireworks AI Inference and MiniMax API need an API key?

Both need an API key.

### Can an agent call Fireworks AI Inference and MiniMax API without installing anything?

Yes. Fireworks AI Inference has a hosted endpoint at https://api.fireworks.ai/inference/v1 and MiniMax API at https://api.minimax.io.


## For agents

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

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