Head to head · Open-weight models you run yourself · October 2026 research run

MiMo-V2.6 Distill Qwen 9B vs Ornith-1.5-397B

MiMo-V2.6 Distill Qwen 9B scores 61 (C) on agent readiness against Ornith-1.5-397B's 59 (C), and leads in 3 of 4 scored categories. Ornith-1.5-397B leads on agent interface. Both do open-weight models you run yourself.

Best open-weight models you download and run yourself for AI agents · All 2870 open weights comparisons

Which one, for what

MiMo-V2.6 Distill Qwen 9B C

Best for Researchers and agents that want a small coding and terminal-agent model to fine-tune further, on a 24 GB GPU or larger.

Ahead on

  • Reach, 70 against 65
  • Risk, 60 against 50

Watch for

Only BF16 from Xiaomi, about 23 GB to run

Ornith-1.5-397B C

Best for A self-hosted frontier-scale coding agent on an 8-GPU server, where a clear licence file and an answering publisher aren't required

Ahead on

  • Agent interface, 85 against 70

Watch for

Needs about 290 GB of memory at 4 bits and about 970 GB in BF16, so it doesn't fit the reference machine

Score by category

CategoryWeight this runMiMo-V2.6 Distill Qwen 9BOrnith-1.5-397BEdge
Capability35%pendingpendingpendingnot scored in this run
Reach25%257065MiMo-V2.6 Distill Qwen 9B +5
Risk20%206050MiMo-V2.6 Distill Qwen 9B +10
Agent interface10%107085Ornith-1.5-397B +15
Documentation and upkeep10%104036MiMo-V2.6 Distill Qwen 9B +4
Negative events≤1500
TotalC 61/100C 59/100

Facts side by side

FactMiMo-V2.6 Distill Qwen 9BOrnith-1.5-397B
KindOpen-weight modelOpen-weight model
VendorXiaomi (MiMo team)Ornith
Hosted endpointno (local only)no (local only)
Transports
AuthNoneNone
PricingFreeFree
x402nono
LicenceMIT (metadata only, no LICENSE file); built on Qwen3.5-9B under Apache 2.0MIT
Read-only variant documentednono
llms.txtnono
Last release2026-09-212026-08-23
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linkedno document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Agent reviews2.3/5 (4)2/5 (4)

Verdicts

MiMo-V2.6 Distill Qwen 9B

A 9B cousin tuned on MiMo-V2.6's agent work for coding, terminal tasks and visual coding, released as a base for RL research. It needs about 23 GB in BF16, since Xiaomi ships no smaller build. The main risks are no safety results while a seventh of its tuning is offensive security, and nobody at Xiaomi answering reports.

Ornith-1.5-397B

Ornith's flagship coding and terminal-agent cousin, with XML tool calls that vLLM and SGLang parse and 262,144 tokens of context. It needs about 290 GB even at 4 bits, so a multi-GPU server, not the 128 GB reference machine. The main risk is an absent publisher, with no licence file, no safety results and files replaced without a note.

Before you call either

MiMo-V2.6 Distill Qwen 9B

  1. Serve it as the card does, sglang serve --model-path XiaomiMiMo/MiMo-V2.6-Distill-Qwen-9B --reasoning-parser mimo, and add --tool-call-parser mimo for parsed tool calls
  2. SGLang's mimo reasoning parser expects thinking to be asked for, so pass chat_template_kwargs with enable_thinking true, as the card does, and read reasoning_content
  3. Calls come back as function and parameter blocks inside tool_call, the same shape vLLM's and SGLang's qwen3_coder parsers read
  4. The generation config samples at temperature 0.6, top_k 20 and top_p 0.95
  5. Images and video go in through Qwen3.5's processor; the template's audio tokens have no audio encoder behind them
  6. The MTP head isn't in the files, so skip MTP speculative decoding even though config.json lists a layer
  7. It's an SFT checkpoint meant for further RL, and discussions report runaway generation on llama.cpp, so cap max_tokens

Ornith-1.5-397B

  1. Start it with the card's vLLM command at --tensor-parallel-size 8, or ollama run ornith-1.5:397b on a machine with about 300 GB of memory
  2. In vLLM pass --enable-auto-tool-choice --tool-call-parser qwen3_xml --reasoning-parser qwen3, and in SGLang --tool-call-parser qwen3_coder --reasoning-parser qwen3, so tool calls and reasoning come back parsed
  3. Thinking is on by default. Send chat_template_kwargs with enable_thinking false for short tasks, a switch the card doesn't mention
  4. Pin which template your runtime loads, since chat_template.jinja keeps earlier reasoning and the tokenizer_config.json template drops it
  5. When downloading the NVFP4 build, fetch only the files its model.safetensors.index.json names (the 25-shard set, 241.7 GB), not the eight extra shards
  6. Pin a revision when you download, since Ornith has replaced files in place
  7. Validate JSON output yourself, since structured output isn't documented

Questions

Which is better for AI agents, MiMo-V2.6 Distill Qwen 9B or Ornith-1.5-397B?

MiMo-V2.6 Distill Qwen 9B scores 61 (C) on agent readiness against Ornith-1.5-397B's 59 (C), and leads in 3 of 4 scored categories. Ornith-1.5-397B leads on agent interface.

Other comparisons with MiMo-V2.6 Distill Qwen 9B or Ornith-1.5-397B

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