Ornith 1.5 35B A3B vs Viv Fast
Viv Fast comes out ahead, 75 to 59 on our weighted score, and it is the cheaper option too.
DeepReinforce
Ornith 1.5 35B A3B
59/100- ECI—
- Price$0.20 / $1.70
- Context262K
- Our pick
VivgridViv Fast
75/100- ECI—
- Price$0.13 / $0.40
- Context1M
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Make it a three-way comparison.
Viv Fast is our pick
Viv Fast is the better all-round choice, scoring 75/100 against Ornith 1.5 35B A3B (59). It leads on price and context window. 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 priceViv FastViv Fast $0.198 · Ornith 1.5 35B A3B $0.575 per 1M tokens (3:1 blend)
- Longest contextViv FastViv Fast 1,000,000 · Ornith 1.5 35B A3B 262,144 tokens
- Widest inputsSame inputsOrnith 1.5 35B A3B: Text, Images · Viv Fast: Text, Images
- Self-hostingOrnith 1.5 35B A3BPublishes downloadable weights (MIT)
| Measure | Weight | Ornith 1.5 35B A3B | Viv Fast |
|---|---|---|---|
| Price | 50% | 61 | 83 |
| Inputs & features | 30% | 70 | 70 |
| Context window | 20% | 37 | 60 |
| Overall | 100% | 59/100 | 75/100 |
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 | Ornith 1.5 35B A3BDeepReinforce | Viv FastVivgrid |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.20 | $0.13 (best) |
| Output | $1.70 | $0.40 (best) |
| Cached input | — | $0.05 |
| Blended (3:1) | $0.575 | $0.198 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 2 providers | Official Vivgrid API |
| Limits | ||
| Context window | 262,144 tokens | 1,000,000 tokens (best) |
| Max output | — | 256,000 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yeslow · high · max |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Availability | ||
| Weights | OpenMIT | Proprietary |
| API model ID | — | viv-fast |
| API providers | 2 (best) | 1 |
| Released | Aug 18, 2026 | Sep 21, 2026 |
| Knowledge cutoff | — | Sep 2026 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Ornith 1.5 35B A3B$5.40
- Viv Fast$2.10
Which should you choose?
Which is better: Ornith 1.5 35B A3B or Viv Fast?
Viv Fast is the better all-round choice, scoring 75/100 against Ornith 1.5 35B A3B (59). It leads on price and context window. 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, Ornith 1.5 35B A3B or Viv Fast?
Viv Fast is cheaper at $0.13 input / $0.40 output per million tokens (official Vivgrid API price). Ornith 1.5 35B A3B costs $0.20 input / $1.70 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.198 per million tokens for Viv Fast versus $0.575 for Ornith 1.5 35B A3B (2.9× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Ornith 1.5 35B A3B has not been scored yet and Viv Fast has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Ornith 1.5 35B A3B and Viv Fast 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?
Viv Fast has the largest context window at 1,000,000 tokens, against 262,144 for Ornith 1.5 35B A3B. Maximum output per response: Viv Fast up to 256,000 tokens.
Which can read images, PDFs, audio or video?
Ornith 1.5 35B A3B accepts text and images; Viv Fast accepts text and images. They handle the same number of input types.
Are any of these open source?
Ornith 1.5 35B A3B publishes its weights (MIT) and can be self-hosted; Viv Fast is proprietary.
Which is newer?
Viv Fast is the newest, released Sep 21, 2026. Ornith 1.5 35B A3B came out Aug 18, 2026. Knowledge cutoff: Viv Fast Sep 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.
