MiniMax M2.5 vs Claude Fable 5.1: price, context window and capabilities
MiniMax M2.5 (minimax/minimax-m2.5) is a language model from MiniMax and Claude Fable 5.1 (anthropic/claude-fable-5.1) a multimodal language model from Anthropic; both are on the OceanToken API. MiniMax M2.5 costs less per token than Claude Fable 5.1: $0.30 against $9.00 per 1M input tokens (97% less) and $1.20 against $45.00 per 1M output tokens (97% less). Claude Fable 5.1 is 10% off its official price on OceanToken, for every account. Claude Fable 5.1 has the larger context window: 1M tokens (1,000,000) against 205K (204,800) for MiniMax M2.5. Both support tool calling, reasoning and structured outputs; only Claude Fable 5.1 also lists image input and file input.
Side by side
| Spec | MiniMax M2.5 | Claude Fable 5.1 −10% |
|---|---|---|
| Model | MiniMax M2.5minimax/ | Claude Fable 5.1anthropic/ |
| Publisher | MiniMax | Anthropic |
| Kind | Text | Text & vision |
| Context window | 205K tokens204,800 | 1M tokens1,000,000 |
| Input price | $0.30 / 1M tokens | $9.00 / 1M tokens |
| Output price | $1.20 / 1M tokens | $45.00 / 1M tokens |
| Cached input price | $0.03 / 1M tokens | $0.25 / 1M tokens |
| Cache write price | – | $12.50 / 1M tokens |
| Web search price | – | $0.01 / search |
| Discount (vs official, top tier) | — | −10% |
| Inputs | text | text, images and files |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose MiniMax M2.5 to spend less per token: 97% less for input and 97% less for output than Claude Fable 5.1.
- Choose Claude Fable 5.1 for the longest inputs: its context window holds 1M tokens against 205K for MiniMax M2.5.
- Choose Claude Fable 5.1 if you need image input and file input: MiniMax M2.5 does not list them.
- Not sure? Call both with the same OceanToken API key and compare them on your own prompts; each request is billed per use from one prepaid balance.
Get API Key MiniMax M2.5 Claude Fable 5.1
Frequently asked questions
Which is cheaper, MiniMax M2.5 or Claude Fable 5.1?
MiniMax M2.5. MiniMax M2.5 costs less per token than Claude Fable 5.1: $0.30 against $9.00 per 1M input tokens (97% less) and $1.20 against $45.00 per 1M output tokens (97% less). Claude Fable 5.1 is 10% off its official price on OceanToken, for every account. The OceanToken console always shows the current price.
Which has the larger context window, MiniMax M2.5 or Claude Fable 5.1?
Claude Fable 5.1. Claude Fable 5.1 has the larger context window: 1M tokens (1,000,000) against 205K (204,800) for MiniMax M2.5.
Can I call both MiniMax M2.5 and Claude Fable 5.1 with one API key?
Yes. Both are on the OceanToken API at https://api.oceantoken.ai/v1: one API key and one prepaid balance call either model. Send the model id minimax/minimax-m2.5 or anthropic/claude-fable-5.1.
Models and publishers
MiniMax M2.5 · Claude Fable 5.1 · All MiniMax models · All Anthropic models
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