Model decision surface
Compare AI models
Start with Claude Opus 5.5 and MiniMax M3.1 Flash, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
Claude Opus 5.5 vs MiniMax M3.1 Flash
Live dataset updated 10/23/2026, 8:09:43 AM UTC
Open 1200×630 evidence receipt| Field | Claude Opus 5.5 Anthropic | MiniMax M3.1 Flash MiniMax |
|---|---|---|
| ModelCap position | #1 | #22 |
| Index score | 87.4 | 77.4 |
| Evidence | Measured4 public benchmark observations across 4 boards | Estimatedpublisher-corpus-prior over 211 held-out anchors (6%); launch card against 5 resolved peers on 6 rows (94%); optimism haircut 0 from cross-lab-probe; shrunk 1.9 toward the measured corpus |
| Input / 1M | $4.00 | $0.15 |
| Output / 1M | $20.00 | $0.60 |
| Pricing status | fresh | fresh |
| Context | 1M | 1M |
| Providers | 5 | 5 |
| Weight access | No linked weights | Restricted license |
Decision facts
- Claude Opus 5.5 is #1; MiniMax M3.1 Flash is #22 on the same current language board.
- Index scores are 87.4 for Claude Opus 5.5 and 77.4 for MiniMax M3.1 Flash. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: Claude Opus 5.5 is Measured; MiniMax M3.1 Flash is Estimated.
- Listed output price per 1M tokens is $20.00 for Claude Opus 5.5 and $0.60 for MiniMax M3.1 Flash. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $18.00 for Claude Opus 5.5 versus $0.60 for MiniMax M3.1 Flash. MiniMax M3.1 Flash costs 96.7% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
- Published context is 1,000,000 tokens for Claude Opus 5.5 and 1,048,576 for MiniMax M3.1 Flash.
- Weight access differs: Claude Opus 5.5 is none; MiniMax M3.1 Flash is restricted.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.