Claude Mythos 5.1 vs Macaron V1 Venti
Claude Mythos 5.1 comes out ahead, 66 to 45 on our weighted score.
- Our pick
AnthropicClaude Mythos 5.1
66/100- ECI—
- Price—
- Context1M
Mindlab
Macaron V1 Venti
45/100- ECI—
- Price$0.825 / $2.48
- Context1.05M
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Make it a three-way comparison.
Claude Mythos 5.1 is our pick
Claude Mythos 5.1 is the better all-round choice, scoring 66/100 against Macaron V1 Venti (45). It leads on inputs & features. The score weighs inputs & features 60%, context window 40%. 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 priceMacaron V1 VentiMacaron V1 Venti $1.24 per 1M tokens (3:1 blend) · Claude Mythos 5.1 unpriced
- Longest contextMacaron V1 VentiMacaron V1 Venti 1,048,576 · Claude Mythos 5.1 1,000,000 tokens
- Widest inputsClaude Mythos 5.1Claude Mythos 5.1: Text, Images, PDFs · Macaron V1 Venti: Text
- Self-hostingMacaron V1 VentiPublishes downloadable weights (MIT)
| Measure | Weight | Claude Mythos 5.1 | Macaron V1 Venti |
|---|---|---|---|
| Inputs & features | 60% | 70 | 35 |
| Context window | 40% | 60 | 61 |
| Overall | 100% | 66/100 | 45/100 |
Left out because at least one model lacks the data: capability and price. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Claude Mythos 5.1Anthropic | Macaron V1 VentiMindlab |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | — | $0.825 |
| Output | — | $2.48 |
| Cached input | — | — |
| Blended (3:1) | — | $1.24 |
| Long-context rate | — | Same rate |
| Price source | — | Median of 1 providers |
| Limits | ||
| Context window | 1,000,000 tokens | 1,048,576 tokens (best) |
| Max output | 128,000 tokens | 131,072 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | Yes | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Proprietary | OpenMIT |
| API model ID | — | — |
| API providers | — | 1 |
| Released | Sep 1, 2026 | Jul 21, 2026 |
| Knowledge cutoff | Jun 2026 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Claude Mythos 5.1—
- Macaron V1 Venti$13.20
Which should you choose?
Which is better: Claude Mythos 5.1 or Macaron V1 Venti?
Claude Mythos 5.1 is the better all-round choice, scoring 66/100 against Macaron V1 Venti (45). It leads on inputs & features. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Claude Mythos 5.1 or Macaron V1 Venti?
Macaron V1 Venti is cheaper at $0.825 input / $2.48 output per million tokens (median across 1 API provider). . At a typical mix of three input tokens to one output token, that is $1.24 per million tokens for Macaron V1 Venti versus . Claude Mythos 5.1 has no published per-token price.
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Claude Mythos 5.1 has not been scored yet and Macaron V1 Venti has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Claude Mythos 5.1 and Macaron V1 Venti 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?
Macaron V1 Venti has the largest context window at 1,048,576 tokens, against 1,000,000 for Claude Mythos 5.1. Maximum output per response: Claude Mythos 5.1 up to 128,000, Macaron V1 Venti up to 131,072 tokens.
Which can read images, PDFs, audio or video?
Claude Mythos 5.1 accepts text, images and PDFs; Macaron V1 Venti accepts text. Claude Mythos 5.1 handles the widest range of inputs.
Are any of these open source?
Macaron V1 Venti publishes its weights (MIT) and can be self-hosted; Claude Mythos 5.1 is proprietary.
Which is newer?
Claude Mythos 5.1 is the newest, released Sep 1, 2026. Macaron V1 Venti came out Jul 21, 2026. Knowledge cutoff: Claude Mythos 5.1 Jun 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 Nov 2, 2026.
