Claude Opus 4.7 vs MiniMax M2.7
Pricing, context window and real answers (August 2026)
Claude Opus 4.7 (Anthropic) and MiniMax M2.7 (MiniMax), compared as you can actually call them on FastMetal. Both are served from the same OpenAI-compatible endpoint and API key; switching is a change to the model string.
Specs and pricing
 Claude Opus 4.7 |  MiniMax M2.7 | |
|---|---|---|
| Provider | Anthropic | MiniMax |
| Input (per 1M tokens) | ¥840 | ¥53.61 |
| Output (per 1M tokens) | ¥4,200 | ¥214.44 |
| Typical cost (1,000 in + 500 out tokens × 1,000 calls) | ¥2,940 | ¥161 |
| Context window | 1,000,000 tokens | 204,800 tokens |
| Release date | 4/16/2026 | 3/18/2026 |
| Input modalities | text, image, file | text |
| Arena · overall | #6 · ELO 1,494 | #121 · ELO 1,417 |
| Arena · Japanese | #18 · ELO 1,478 | #166 · ELO 1,278 |
| Arena · coding | #4 · ELO 1,547 | #94 · ELO 1,481 |
Prices are FastMetal's yen rates before tax. Arena ranks are as of the latest leaderboard scrape.
Which should you pick?
- On price, MiniMax M2.7: ¥214.44 per 1M output tokens, 95% less than Claude Opus 4.7.
- On the Overall arena board, Claude Opus 4.7 ranks higher (#6; MiniMax M2.7 is #121).
- On the Japanese arena board, Claude Opus 4.7 ranks higher (#18; MiniMax M2.7 is #166).
- On the Coding arena board, Claude Opus 4.7 ranks higher (#4; MiniMax M2.7 is #94).
- For long documents, Claude Opus 4.7: a 1,000,000-token context window against 204,800 for MiniMax M2.7.
- If in doubt, try both on the same key. Switching is a change to the model string, and each is billed at its own rate.
Frequently asked questions
- Which is cheaper, Claude Opus 4.7 or MiniMax M2.7?
- Per 1M output tokens, Claude Opus 4.7 is ¥4,200 and MiniMax M2.7 is ¥214.44 on FastMetal (yen, before tax), so MiniMax M2.7 is cheaper.
- How do the context windows of Claude Opus 4.7 and MiniMax M2.7 compare?
- Claude Opus 4.7 takes 1,000,000 tokens; MiniMax M2.7 takes 204,800.
- Which ranks higher, Claude Opus 4.7 or MiniMax M2.7?
- Claude Opus 4.7 ranks higher on the public arena (Claude Opus 4.7 #18, MiniMax M2.7 #166). Ranks move as the leaderboard updates.
- Can I use Claude Opus 4.7 and MiniMax M2.7 with the same API key?
- Yes. On FastMetal's OpenAI-compatible endpoint, switch by passing "anthropic-claude-opus-4-7" or "minimax-m2.7" as the model. Each is billed at its own rate from the same prepaid balance.
Try both on one API key
Create an account and add credit to call Claude Opus 4.7 and MiniMax M2.7 from the browser chat and the API. No monthly fee.