Doubao Seed 2.1 Pro vs MiniMax M3
Doubao Seed 2.1 Pro wins on Overall, Coding, Multimodal. Every numeric field is compared below, with a worked monthly-cost example and a pick rule for each use case.
Verdict at a glance
Choose Doubao Seed 2.1 Pro if you…
- World-leading video understanding
- Excellent Chinese
- Strong agent ability
- Full 256K context
- Best for: Video understanding, Chinese tasks, AI agents
Choose MiniMax M3 if you…
- Strong agent ability
- Open source
- Low price
- Best for: AI agents, Open source, Chinese
Head-to-head aggregate scores
Scores are 0–100, aggregated from public benchmark information and independently weighted across three leaderboards. Rank is out of 22 tracked models.
Aggregated from public sources and independently weighted; methodology on the Terms page. Scores within 3 points are treated as statistically tied.
Specs & pricing — every field side by side
List API prices in USD per 1M tokens. The highlighted cell is the stronger value/capability on that row.
| Dimension | Doubao Seed 2.1 Pro | MiniMax M3 | Verdict |
|---|---|---|---|
| Vendor | ByteDance (CN) | MiniMax (CN) | Different vendors |
| Released | 2026.06 | 2026.06 | MiniMax M3 is newer |
| Overall (rank) | 78 · #7 | 70 · #13 | Doubao Seed 2.1 Pro +8 |
| Coding | 76 · #7 | 68 · #13 | Doubao Seed 2.1 Pro +8 |
| Multimodal | 92 · #2 | 70 · #18 | Doubao Seed 2.1 Pro +22 |
| Context window | 256K | 1M | MiniMax M3 larger |
| Max output | 256K | 64K | MiniMax M3 longer |
| Effective-context | 93 | 90 | Doubao Seed 2.1 Pro more reliable |
| Input $/1M | $0.83 | $0.6 | MiniMax M3 cheaper |
| Output $/1M | $4.17 | $2.4 | MiniMax M3 cheaper |
| Cache discount | custom | none | MiniMax M3 deeper |
| Speed | ~65 tok/s | ~60 tok/s | Doubao Seed 2.1 Pro faster |
| TTFT | 0.5s | 0.5s | Tie |
| Function calling | 85 | 84 | Doubao Seed 2.1 Pro ahead |
| Refusal rate | ~11% | ~7% | MiniMax M3 less restrictive |
| English | 72 | 70 | Doubao Seed 2.1 Pro |
| Chinese | 95 | 88 | Doubao Seed 2.1 Pro |
| Modalities | text, image, video | text | different coverage |
| Open weights | No | Yes | MiniMax M3 is open |
| Fine-tuning | Yes | Yes | |
| Free tier | Doubao App free; free quota on the Ark platform | Hailuo AI free; open-platform quota | |
| SOC2 / no-train | no / yes | no / yes | |
| Private deployment | Yes | Yes | Both support it |
Fields drawn from vendor public documentation and the Modelspectra 22-model dataset; speed varies with network, concurrency and prompt length. Verify current pricing before purchase.
Dimension-by-dimension analysis
Reasoning & overall intelligence
Doubao Seed 2.1 Pro leads the overall aggregate by 8 points (78 vs 70). That is a meaningful, not marginal, edge on hard, multi-step reasoning, while MiniMax M3 remains a strong generalist that is not out of its depth on routine work.
Agentic coding
This is a modest gap: Doubao Seed 2.1 Pro scores 76 against 68. On multi-file edits, SWE-style tickets and long-horizon agent loops Doubao Seed 2.1 Pro needs fewer correction turns; MiniMax M3 is still competent for scripts and assisted completion but trails as task complexity rises.
Multimodal
Doubao Seed 2.1 Pro leads multimodal 92 vs 70. A concrete modality difference: Doubao Seed 2.1 Pro additionally handles image, video.
Speed & latency
Doubao Seed 2.1 Pro is faster in interactive use: ~65 tok/s with 0.5s TTFT versus ~60 tok/s with 0.5s TTFT (about 1.1× the throughput). For conversational UIs where perceived responsiveness drives retention, that edge is a real product factor even when raw reasoning is lower.
Context: window vs usable recall
Nominal windows are 256K for Doubao Seed 2.1 Pro and 1M for MiniMax M3. Crucially, the larger nominal window does not win on usable recall: MiniMax M3 advertises 1M but Doubao Seed 2.1 Pro scores higher on effective-context (93 vs 90), i.e. it actually retains more of what it was given.
Price & total cost
MiniMax M3 is the cheaper API at $0.6/$2.4 versus Doubao Seed 2.1 Pro at $0.83/$4.17 per 1M input/output tokens — list input is about 1.4× lower.
Chinese vs English
English: Doubao Seed 2.1 Pro 72 vs MiniMax M3 70. Chinese: 95 vs 88. For Chinese-language production, Doubao Seed 2.1 Pro is the stronger pick. Note that non-Chinese models generally require overseas network access for their APIs.
Tool use & ecosystem
Function-calling score: Doubao Seed 2.1 Pro 85 vs MiniMax M3 84, so Doubao Seed 2.1 Pro has the edge on structured tool use. Fine-tuning is available from Doubao Seed 2.1 Pro and MiniMax M3. Factor in existing SDK/plugin familiarity — switching cost often outweighs a few-point tool-use gap.
Cost worked example — same workload, real token math
Assume a production workload of 100M input + 30M output tokens per month, with 90% of input tokens served from cache. Figures use public list prices.
| Scenario · per month | Doubao Seed 2.1 Pro | MiniMax M3 | Gap |
|---|---|---|---|
| List priceno cache applied | $208100M in × $0.83 + 30M out × $4.17 | $132100M in × $0.6 + 30M out × $2.4 | 1.58×gap |
| With caching90% of inputs cache-hit | $208no published cache discount | $132no published cache discount | 1.58×gap |
Illustrative model; your input/output mix and cache-hit ratio change the result. Prices are list rates before any enterprise agreement.