MiniMax M3.1 Flash
MiniMax-M3.1-FlashMiniMax M3.1 Flash by MiniMax: 1M context, 512K max output, with Vision, Function Calling, Reasoning, Prompt Caching, Video, Streaming, Web Search. Via WandAPI, Input (prompt) costs 0.6 Credits / M tokens, 40% below list price. 7-day uptime 100.0%. Compatible with Anthropic Messages / OpenAI Responses: swap the base URL and you are connected.
Capabilities
Listed exactly as the catalog flags them, including what this model does not support.
Vision
Natively multimodal: captioning, classification, visual Q&A, chart and screenshot understanding. Images are converted to tokens at the input rate.
Function Calling
Connect the model to external tools and APIs: it decides when to call which function and with what arguments, your code runs it. Force or forbid calls with tool_choice.
Reasoning
The model thinks before answering, which markedly improves multi-step planning and reasoning for coding, math and data analysis. Thinking tokens bill at the output rate.
Prompt Caching
Repeated prefixes (system prompts, long documents) hit the cache: reads cost far less than input, writes are priced by retention time.
Video
Video input understanding or video generation.
Streaming
Tokens arrive over SSE as they are generated; the first frame is forwarded immediately with no buffering. Claude Code, Codex and similar tools depend on this.
Web Search
Vendor-hosted live web retrieval; the model decides when to search and cites sources.
Response SchemaNot supported
Constrain output to a JSON Schema you provide for predictable, type-safe results without parsing free text.
AudioNot supported
Audio input or speech output.
File InputNot supported
Upload PDFs and other documents directly; the model reads the whole document with native vision.
RealtimeNot supported
Bidirectional low-latency voice / text sessions over WebSocket.
SessionNot supported
Server-side multi-turn context (e.g. previous_response_id in Responses) so you need not resend history.
MediaNot supported
Image / video / music generation endpoints.
Multipart FormNot supported
multipart/form-data file-upload requests.
Binary ResponseNot supported
Endpoints that return raw audio / image bytes.
Reliability & performance
WandAPI probes this model through the real supply chain on a schedule — measured, not self-reported.
Latency & throughput
Protocols & code samples
Change the base URL to WandAPI, keep everything else. Native protocols pass straight through; “adapted” ones are translated by the gateway.
Anthropic SDK or any Messages-protocol client: point base_url at https://api.wandapi.com and use a WandAPI key.
curl https://api.wandapi.com/v1/messages \
-H "x-api-key: $WANDAPI_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "content-type: application/json" \
-d '{
"model": "MiniMax-M3.1-Flash",
"max_tokens": 1024,
"messages": [{"role": "user", "content": "Explain prompt caching in one sentence"}]
}'Full price list
List price → WandAPI price per channel, every pricing dimension, nothing hidden.
| Item | Unit | MiniMax list price | MiniMax (Special Offer) ×0.640% off |
|---|---|---|---|
| Input (prompt) | per 1M tokens | 0.6 Credits | |
| Output (completion) | per 1M tokens | 2.4 Credits | |
| Cache read | per 1M tokens | 0.06 Credits |
“Off” is computed at 1 Credit = ¥1 and today’s rate: 1 − channel multiplier × (1 Credit in the list currency).
FAQ
How much does the MiniMax M3.1 Flash API cost?
Via WandAPI, Input (prompt) costs 0.6 Credits / M tokens, with 1 Credit = ¥1. That is 40% below the MiniMax list price.
What are the context window and output limit of MiniMax M3.1 Flash?
Context window 1M tokens, up to 512K tokens per response.
Does MiniMax M3.1 Flash support function calling and structured outputs?
Function calling with tool_choice control is supported; structured outputs (JSON Schema) are not enabled — use a function-call parameter schema for type-safe results instead.
How do I use MiniMax M3.1 Flash in Claude Code?
Set ANTHROPIC_BASE_URL=https://api.wandapi.com, ANTHROPIC_API_KEY to your WandAPI key and ANTHROPIC_MODEL=MiniMax-M3.1-Flash, then run claude. No config files to edit.
How is the 100.0% uptime measured?
WandAPI sends probe requests to this model through the real supply chain on a schedule and divides successful probes by total probes over the last 7 days. When one channel fails the gateway fails over to a backup, so the figure reflects what end users actually see.
One API key for MiniMax M3.1 Flash and 30+ models
Free credits on sign-up, pay as you go, no monthly fee.