MiMo-V2.5-Pro-UltraSpeed vs Claude Mythos 5
MiMo-V2.5-Pro-UltraSpeed comes out ahead, 43 to 36 on our weighted score, and it is the cheaper option too.
- Our pick
XiaomiMiMo-V2.5-Pro-UltraSpeed
43/100- ECI—
- Price$1.30 / $2.61
- Context1.05M
AnthropicClaude Mythos 5
36/100- ECI—
- Price$10.00 / $50.00
- Context1M
Add a model
Make it a three-way comparison.
MiMo-V2.5-Pro-UltraSpeed is our pick
MiMo-V2.5-Pro-UltraSpeed is the better all-round choice, scoring 43/100 against Claude Mythos 5 (36). It leads on price. Claude Mythos 5 wins on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceMiMo-V2.5-Pro-UltraSpeedMiMo-V2.5-Pro-UltraSpeed $1.63 · Claude Mythos 5 $20.00 per 1M tokens (3:1 blend)
- Longest contextMiMo-V2.5-Pro-UltraSpeedMiMo-V2.5-Pro-UltraSpeed 1,048,576 · Claude Mythos 5 1,000,000 tokens
- Widest inputsClaude Mythos 5MiMo-V2.5-Pro-UltraSpeed: Text · Claude Mythos 5: Text, Images, PDFs
- Self-hostingMiMo-V2.5-Pro-UltraSpeedPublishes downloadable weights
| Measure | Weight | MiMo-V2.5-Pro-UltraSpeed | Claude Mythos 5 |
|---|---|---|---|
| Price | 50% | 40 | 0 |
| Inputs & features | 30% | 35 | 80 |
| Context window | 20% | 61 | 60 |
| Overall | 100% | 43/100 | 36/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | MiMo-V2.5-Pro-UltraSpeedXiaomi | Claude Mythos 5Anthropic |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $1.30 (best) | $10.00 |
| Output | $2.61 (best) | $50.00 |
| Cached input | $0.011 | — |
| Blended (3:1) | $1.63 (best) | $20.00 |
| Long-context rate | Same rate | Same rate |
| Price source | Official Xiaomi API | Median of 2 providers |
| Limits | ||
| Context window | 1,048,576 tokens (best) | 1,000,000 tokens |
| Max output | 131,072 tokens (best) | 128,000 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | No | Yes |
| PDFs | No | Yes |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Open | Proprietary |
| API model ID | mimo-v2.5-pro-ultraspeed | — |
| API providers | 1 | 2 (best) |
| Released | Jun 8, 2026 | Jun 9, 2026 |
| Knowledge cutoff | Dec 2024 | Jan 31, 2026 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- MiMo-V2.5-Pro-UltraSpeed$18.27
- Claude Mythos 5$200.00
Which should you choose?
Which is better: MiMo-V2.5-Pro-UltraSpeed or Claude Mythos 5?
MiMo-V2.5-Pro-UltraSpeed is the better all-round choice, scoring 43/100 against Claude Mythos 5 (36). It leads on price. Claude Mythos 5 wins on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, MiMo-V2.5-Pro-UltraSpeed or Claude Mythos 5?
MiMo-V2.5-Pro-UltraSpeed is cheaper at $1.30 input / $2.61 output per million tokens (official Xiaomi API price). Claude Mythos 5 costs $10.00 input / $50.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $1.63 per million tokens for MiMo-V2.5-Pro-UltraSpeed versus $20.00 for Claude Mythos 5 (12× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. MiMo-V2.5-Pro-UltraSpeed has not been scored yet and Claude Mythos 5 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for MiMo-V2.5-Pro-UltraSpeed and Claude Mythos 5 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
MiMo-V2.5-Pro-UltraSpeed has the largest context window at 1,048,576 tokens, against 1,000,000 for Claude Mythos 5. Maximum output per response: MiMo-V2.5-Pro-UltraSpeed up to 131,072, Claude Mythos 5 up to 128,000 tokens.
Which can read images, PDFs, audio or video?
MiMo-V2.5-Pro-UltraSpeed accepts text; Claude Mythos 5 accepts text, images and PDFs. Claude Mythos 5 handles the widest range of inputs.
Are any of these open source?
MiMo-V2.5-Pro-UltraSpeed publishes its weights and can be self-hosted; Claude Mythos 5 is proprietary.
Which is newer?
Claude Mythos 5 is the newest, released Jun 9, 2026. MiMo-V2.5-Pro-UltraSpeed came out Jun 8, 2026. Knowledge cutoff: MiMo-V2.5-Pro-UltraSpeed Dec 2024, Claude Mythos 5 Jan 31, 2026.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
Related comparisons
- Add Seed 2.1 ProThree-way comparison
- MiMo-V2.5-Pro-UltraSpeed vs Seed 2.1 ProByteDance Seed
- MiMo-V2.5-Pro-UltraSpeed vs DeepSeek V4 ProDeepSeek
- MiMo-V2.5-Pro-UltraSpeed vs Sakana NamazuSakana AI
- MiMo-V2.5-Pro-UltraSpeed vs LongCat-2.0Meituan (LongCat)
- Claude Mythos 5 vs GPT-5.6 CyberOpenAI
- Claude Mythos 5 vs Fugu UltraSakana AI
