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GPT-5.6 vs MiniMax M3

vs

何时使用哪一个 — 经过整理的结论,而非基准测试表格

两者都接受文本和图像输入并返回文本,都允许关闭思考,上下文窗口也接近(gpt-5.6 为 1050000,minimax-m3 为 1000000)——真正的差距是成本和输出空间。minimax-m3 输入约便宜 16.7 倍、输出约便宜 25 倍、缓存读取约便宜 8.3 倍($0.3/$1.2/$0.06 对 $5/$30/$0.5),它还接受视频,而且 524288 的最大输出远超 gpt-5.6 的 128000 上限。想要更新的 2026-07-09 模型、带明确视觉标志和 2026-02 截止时选 gpt-5.6;批量长上下文和超长生成则选 minimax-m3。

定价

GPT-5.6 MiniMax M3 Δ
输入 / 1M tokens $5 $0.3 17×
输出 / 1M tokens $30 $1.2 25×
缓存读取 / 1M tokens $0.5 $0.06 8.3×
缓存写入 不单独收费 不单独收费

费率取自构建时的实时目录;每个模型页面均附有当前的费率卡。

它们的位置 — 以该计费单位计费的所有 63 个 聊天 模型的 每 1M token 的输入价格(对数刻度)

GPT-5.6 · $5 MiniMax M3 · $0.3
$0.05 · Qwen3 VL Flash $30 · GPT-5.4 Pro

能力

GPT-5.6 MiniMax M3
工具使用
思考控制 可配置 可配置
结构化输出
提示词缓存 隐式(自动) 隐式(自动)
缓存生存时间 5–10m, up to 1h 未公开
最小缓存前缀 1024 个 token 512 个 token

规格

GPT-5.6 MiniMax M3
输入模态 文本 图像 文本 图像 视频
输出模态 文本 文本
发布日期 2026-07-09 2026-06-01
知识截止日期 2026-02
上下文窗口 1.1M 1M
最大输出 128K 524K
思考参数 reasoning.effort
  • thinking.type
  • reasoning_split
允许的值
reasoning.effort
  • none
  • low
  • medium
  • high
  • xhigh
  • max
thinking.type
  • adaptive
  • disabled
reasoning_split
  • boolean
默认值 medium adaptive: thinking on, with the model deciding when extra reasoning helps

规格转录自各供应商的文档;若供应商未发布某项数据,则直接省略该行,而非进行推断。 完整来源: GPT-5.6 · MiniMax M3

单个 Prompt,两个模型 —— 通过网关实测

提示词 Explain to a CFO, in exactly three sentences, why our LLM bill doubled after we enabled reasoning. 检查 恰好 3 句

GPT-5.6 通过 · 3 sentences

Enabling reasoning makes the model generate many additional internal tokens before producing an answer, so each request consumes substantially more compute. Those reasoning tokens are billed even though they are not visible to users, and longer processing can also increase tool calls, retries, and output length. The bill doubled because our cost per request rose, not necessarily because usage volume increased; we can control it by limiting reasoning effort and routing simpler tasks to cheaper models.

输出 126 tok (+30 思考) 延迟 3.0 s

MiniMax M3 通过 · 3 sentences

Reasoning-enabled models deliberately produce extensive internal "chain-of-thought" tokens before answering, often consuming 5–10x more tokens per query than a standard model. Because LLM providers bill per token for both that reasoning trace and the final response, your cost-per-query rises proportionally—and that multiplier is the primary driver of the doubled bill. The right response isn't to disable reasoning, but to route only genuinely complex queries to it while keeping routine traffic on the cheaper standard tier, which typically recovers 60–80% of the cost without sacrificing quality where it matters.

输出 665 tok (+548 思考) 延迟 5.7 s

指令遵循(恰好三句,可数)、受众适配(面向 CFO 的语气),以及下方 token 计量所暴露的隐藏思考计费缺口。

提示词 This function is supposed to return the longest run of consecutive equal items, but callers report it is off by one on single-element inputs and misses runs that end at the last index. Fix it and explain the bug in one paragraph. 检查 修复通过测试

GPT-5.6 通过 · 8/8 cases

```python def longest_run(xs): if not xs: return 0 best = cur = 1 for i in range(1, len(xs)): if xs[i] == xs[i - 1]: cur += 1 else: best = max(best, cur) cur = 1 return max(best, cur) ``` The original code counted equal *transitions* rather than items, so a run of one had length `0`, a run of three had length `2`, and tracking from zero caused the off-by-one error. The corrected version starts each run at length `1`, resets to `1` when the value changes, and performs a final `max` after the loop so a run ending at the last element is included; an empty input still returns `0`.

输出 277 tok (+93 思考) 延迟 4.2 s

MiniMax M3 通过 · 8/8 cases

The bug is in the loop bound: `range(1, len(xs))` iterates from index 1 up to but not including `len(xs) - 1`... wait, actually it goes up to `len(xs) - 1`, so the last index is included. The real problems are two: 1. **Starting `best` and `cur` at 0** and iterating from index 1 means a single-element list (`len(xs) == 1`) never enters the loop, so the function returns `0` instead of `1`. The fix is to either seed `best = cur = 1` when `xs` is non-empty, or include index 0 in the loop logic. 2. **Missing the final run**: the function only updates `best` *inside* the loop when it finds a continuation. If the longest run ends at the very last element, the loop body never gets to compare it after the increment — actually it does, but only if the run is longer than the previous `best`. […]

输出 464 tok 延迟 7.9 s

修复是否真的正确(可运行)、解释的信息密度,以及在一个边界明确的任务上的 token 效率。

提示词 Extract a JSON object with fields {company, quarter, revenue_usd_m, growth_pct, guidance} from this text. Use null for anything not stated; add no other fields. 检查 合法 JSON,schema 精确

GPT-5.6 通过 · 5/5 fields, guidance "withheld pending the Q4 close"

{ "company": "Meridian Robotics", "quarter": "September quarter", "revenue_usd_m": 412, "growth_pct": null, "guidance": "withheld pending the Q4 close" }

输出 179 tok (+118 思考) 延迟 3.7 s

MiniMax M3 通过 · 5/5 fields, guidance null

```json { "company": "Meridian Robotics", "quarter": "September quarter", "revenue_usd_m": 412, "growth_pct": 11, "guidance": null } ```

输出 2212 tok (+2161 思考) 延迟 23.3 s

schema 服从度(不臆造字段)、幻觉压力(guidance 明确被暂缓给出),以及结构化输出路径的差异。

提示词 Write a 120-word product announcement for an API gateway feature that caches prompts across providers. Forbidden words: "seamless", "unlock", "game-changer", "revolutionize", "empower". Exactly one sentence must be a question. 检查 120 词,0 个禁用词

GPT-5.6 通过 · 120 words, 0 banned, 1 question

Today we are introducing Prompt Cache, a new API gateway feature that stores reusable prompt prefixes and serves them across supported model providers. By recognizing identical system instructions, tools, examples, and context blocks, Prompt Cache reduces repeated input processing, lowers latency, and helps control token costs without changing application code. Teams can configure retention windows, cache keys, provider routing, encryption, and regional storage policies from one dashboard or API. What happens when a preferred provider is unavailable? The gateway can route requests to another provider while reusing eligible cached content, preserving performance and consistency. Built-in metrics report hit rates, savings, latency, and provider usage, while audit logs support governance. Prompt Cache is available today in public preview for all customers.

输出 628 tok (+473 思考) 延迟 7.3 s

MiniMax M3 通过 · 120 words, 0 banned, 1 question

Introducing PromptCache, our new API gateway feature that caches prompts across multiple LLM providers. Developers can store prompt-completion pairs centrally, reducing redundant inference calls and lowering costs without sacrificing quality. How will your workflow change when repeated requests resolve instantly from a shared cache layer? The gateway intercepts outgoing requests, checks for matching prompt fingerprints, and serves previously generated completions when available, falling back to the original provider on misses. Compatible with OpenAI, Anthropic, Cohere, and custom endpoints, PromptCache integrates with existing routing rules and supports TTL, versioning, and per-tenant namespaces. Teams now gain predictable latency, reduced token spend, and improved throughput during traffic spikes today. […]

输出 3256 tok (+2892 思考) 延迟 21.5 s

约束服从度(字数预算、禁用词表、唯一的那句问句)、文风指纹,以及长度控制。

只需一行代码即可在它们之间切换

两个 ID 都包含在下方的每个选项卡中 — 高亮显示的两行是唯一的修改。相同的端点,相同的密钥,相同的请求结构。

from openai import OpenAI

client = OpenAI(
    base_url="https://synthorai.io/v1",
    api_key="sk-syn-...",
)

resp = client.chat.completions.create(
    model="gpt-5.6",
    # model="minimax-m3",  # 取消注释此行,注释上一行
    messages=[{"role": "user", "content": "Summarize this diff"}],
    reasoning_effort="medium",
)
print(resp.choices[0].message.content)

获取 API 密钥 →

常见问题

GPT-5.6 和 MiniMax M3 哪个更便宜?

在 输入 / 1m tokens 方面,MiniMax M3 更便宜($0.3 对比 $5,相差 17×)。其他行可能得出相反的结论——上方表格提供了完整信息,实际成本取决于你的组合使用情况。

我可以在不进行两次集成的情况下,对 GPT-5.6 和 MiniMax M3 进行 A/B 测试吗?

可以。两者均通过同一个兼容 OpenAI 的端点提供服务,并使用同一把 API 密钥——切换只需更改一行模型字符串,因此你可以将一部分流量路由到各个模型并直接比较账单。

GPT-5.6 和 MiniMax M3 支持提示词缓存吗?

是的 —— 两者对缓存读取的计费均低于其输入费率,因此热前缀工作负载的成本低于标价。准确的缓存读取行位于上方的定价表中。

相关对比

来自我们的实测研究