Fugu Ultra vs MiMo-V2.6-Pro-UltraSpeed vs Claude Mythos 5
MiMo-V2.6-Pro-UltraSpeed comes out ahead, 44 to 36 and 33 on our weighted score, and it is the cheaper option too.
Sakana AI
Fugu Ultra
33/100- ECI—
- Price$5.00 / $30.00
- Context1M
- Our pick
XiaomiMiMo-V2.6-Pro-UltraSpeed
44/100- ECI—
- Price$4.35 / $8.70
- Context1.05M
AnthropicClaude Mythos 5
36/100- ECI—
- Price$10.00 / $50.00
- Context1M
MiMo-V2.6-Pro-UltraSpeed is our pick
MiMo-V2.6-Pro-UltraSpeed is the better all-round choice, scoring 44/100 against Claude Mythos 5 (36) and Fugu Ultra (33). It leads on price. 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-V2.6-Pro-UltraSpeedMiMo-V2.6-Pro-UltraSpeed $5.44 · Fugu Ultra $11.25 · Claude Mythos 5 $20.00 per 1M tokens (3:1 blend)
- Longest contextMiMo-V2.6-Pro-UltraSpeedMiMo-V2.6-Pro-UltraSpeed 1,048,576 · Fugu Ultra 1,000,000 · Claude Mythos 5 1,000,000 tokens
- Widest inputsMiMo-V2.6-Pro-UltraSpeedFugu Ultra: Text, Images · MiMo-V2.6-Pro-UltraSpeed: Text, Images, Audio, Video · Claude Mythos 5: Text, Images, PDFs
- Self-hostingMiMo-V2.6-Pro-UltraSpeedPublishes downloadable weights
| Measure | Weight | Fugu Ultra | MiMo-V2.6-Pro-UltraSpeed | Claude Mythos 5 |
|---|---|---|---|---|
| Price | 50% | 0 | 15 | 0 |
| Inputs & features | 30% | 70 | 80 | 80 |
| Context window | 20% | 60 | 61 | 60 |
| Overall | 100% | 33/100 | 44/100 | 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 | Fugu UltraSakana AI | MiMo-V2.6-Pro-UltraSpeedXiaomi | Claude Mythos 5Anthropic |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | — | — | — |
| ECI rank | — | — | — |
| Price per million tokens | |||
| Input | $5.00 | $4.35 (best) | $10.00 |
| Output | $30.00 | $8.70 (best) | $50.00 |
| Cached input | $0.50 | $0.036 (best) | — |
| Blended (3:1) | $11.25 | $5.44 (best) | $20.00 |
| Long-context rate | Over 272K: $10.00 / $45.00 | Same rate | Same rate |
| Price source | Official Sakana AI API | Official Xiaomi API | Median of 2 providers |
| Limits | |||
| Context window | 1,000,000 tokens | 1,048,576 tokens (best) | 1,000,000 tokens |
| Max output | — | 131,072 tokens (best) | 128,000 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | Yes | Yes |
| PDFs | No | No | Yes |
| Audio | No | Yes | No |
| Video | No | Yes | No |
| Reasoning | Yeshigh · xhigh | Yes | Yes |
| Tool calling | Yes | Yes | Yes |
| Structured output | Yes | No | Yes |
| Availability | |||
| Weights | Proprietary | Open | Proprietary |
| API model ID | fugu-ultra | mimo-v2.6-pro-ultraspeed | — |
| API providers | 11 (best) | 9 | 2 |
| Released | Jun 15, 2026 | Sep 21, 2026 | Jun 9, 2026 |
| Knowledge cutoff | — | — | 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.
- Fugu Ultra$110.00
- MiMo-V2.6-Pro-UltraSpeed$60.90
- Claude Mythos 5$200.00
Which should you choose?
Which is better: Fugu Ultra, MiMo-V2.6-Pro-UltraSpeed or Claude Mythos 5?
MiMo-V2.6-Pro-UltraSpeed is the better all-round choice, scoring 44/100 against Claude Mythos 5 (36) and Fugu Ultra (33). It leads on price. 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, Fugu Ultra, MiMo-V2.6-Pro-UltraSpeed or Claude Mythos 5?
MiMo-V2.6-Pro-UltraSpeed is cheaper at $4.35 input / $8.70 output per million tokens (official Xiaomi API price). Fugu Ultra costs $5.00 input / $30.00 output per million tokens (official Sakana AI 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 $5.44 per million tokens for MiMo-V2.6-Pro-UltraSpeed versus $11.25 for Fugu Ultra (2.1× as much) and $20.00 for Claude Mythos 5 (3.7× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. Fugu Ultra has not been scored yet, MiMo-V2.6-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 Fugu Ultra, MiMo-V2.6-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. All three support tool calling for agent workflows.
Which has the bigger context window?
MiMo-V2.6-Pro-UltraSpeed has the largest context window at 1,048,576 tokens, against 1,000,000 for Fugu Ultra and 1,000,000 for Claude Mythos 5. Maximum output per response: MiMo-V2.6-Pro-UltraSpeed up to 131,072, Claude Mythos 5 up to 128,000 tokens.
Which can read images, PDFs, audio or video?
Fugu Ultra accepts text and images; MiMo-V2.6-Pro-UltraSpeed accepts text, images, audio and video; Claude Mythos 5 accepts text, images and PDFs. MiMo-V2.6-Pro-UltraSpeed handles the widest range of inputs.
Are any of these open source?
MiMo-V2.6-Pro-UltraSpeed publishes its weights and can be self-hosted; Fugu Ultra and Claude Mythos 5 is proprietary.
Which is newer?
MiMo-V2.6-Pro-UltraSpeed is the newest, released Sep 21, 2026. Fugu Ultra came out Jun 15, 2026; Claude Mythos 5 came out Jun 9, 2026. Knowledge cutoff: 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.
