Hermes 4 405B vs Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05 comes out ahead, 48 to 35 on our weighted score, though Hermes 4 405B is 2.2× cheaper per token.
Nous ResearchHermes 4 405B
35/100- ECI—
- Price$1.00 / $3.00
- Context131K
- Our pick
GoogleGemini 2.5 Pro Preview 06-05
48/100- ECI—
- Price$1.22 / $9.75
- Context1.05M
Add a model
Make it a three-way comparison.
Gemini 2.5 Pro Preview 06-05 is our pick
Gemini 2.5 Pro Preview 06-05 is the better all-round choice, scoring 48/100 against Hermes 4 405B (35). It leads on inputs & features and context window. Hermes 4 405B wins 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 priceHermes 4 405BHermes 4 405B $1.50 · Gemini 2.5 Pro Preview 06-05 $3.35 per 1M tokens (3:1 blend)
- Longest contextGemini 2.5 Pro Preview 06-05Gemini 2.5 Pro Preview 06-05 1,048,576 · Hermes 4 405B 131,072 tokens
- Widest inputsGemini 2.5 Pro Preview 06-05Hermes 4 405B: Text · Gemini 2.5 Pro Preview 06-05: Text, Images, PDFs, Audio
- Self-hostingHermes 4 405BPublishes downloadable weights
| Measure | Weight | Hermes 4 405B | Gemini 2.5 Pro Preview 06-05 |
|---|---|---|---|
| Price | 50% | 40 | 24 |
| Inputs & features | 30% | 35 | 80 |
| Context window | 20% | 25 | 61 |
| Overall | 100% | 35/100 | 48/100 |
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 | Hermes 4 405BNous Research | Gemini 2.5 Pro Preview 06-05Google |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $1.00 (best) | $1.22 |
| Output | $3.00 (best) | $9.75 |
| Cached input | — | — |
| Blended (3:1) | $1.50 (best) | $3.35 |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 5 providers | Median of 4 providers |
| Limits | ||
| Context window | 131,072 tokens | 1,048,576 tokens (best) |
| Max output | 117,964 tokens (best) | 65,536 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | No | Yes |
| PDFs | No | Yes |
| Audio | No | Yes |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Open | Proprietary |
| API model ID | — | — |
| API providers | 5 (best) | 4 |
| Released | Aug 26, 2025 | Jun 5, 2025 |
| Knowledge cutoff | Aug 31, 2024 | Jan 31, 2025 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Hermes 4 405B$16.00
- Gemini 2.5 Pro Preview 06-05$31.69
Which should you choose?
Which is better: Hermes 4 405B or Gemini 2.5 Pro Preview 06-05?
Gemini 2.5 Pro Preview 06-05 is the better all-round choice, scoring 48/100 against Hermes 4 405B (35). It leads on inputs & features and context window. Hermes 4 405B wins 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, Hermes 4 405B or Gemini 2.5 Pro Preview 06-05?
Hermes 4 405B is cheaper at $1.00 input / $3.00 output per million tokens (median across 5 API providers). Gemini 2.5 Pro Preview 06-05 costs $1.22 input / $9.75 output per million tokens (median across 4 API providers). At a typical mix of three input tokens to one output token, that is $1.50 per million tokens for Hermes 4 405B versus $3.35 for Gemini 2.5 Pro Preview 06-05 (2.2× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Hermes 4 405B has not been scored yet and Gemini 2.5 Pro Preview 06-05 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Hermes 4 405B and Gemini 2.5 Pro Preview 06-05 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?
Gemini 2.5 Pro Preview 06-05 has the largest context window at 1,048,576 tokens, against 131,072 for Hermes 4 405B. Maximum output per response: Hermes 4 405B up to 117,964, Gemini 2.5 Pro Preview 06-05 up to 65,536 tokens.
Which can read images, PDFs, audio or video?
Hermes 4 405B accepts text; Gemini 2.5 Pro Preview 06-05 accepts text, images, PDFs and audio. Gemini 2.5 Pro Preview 06-05 handles the widest range of inputs.
Are any of these open source?
Hermes 4 405B publishes its weights and can be self-hosted; Gemini 2.5 Pro Preview 06-05 is proprietary.
Which is newer?
Hermes 4 405B is the newest, released Aug 26, 2025. Gemini 2.5 Pro Preview 06-05 came out Jun 5, 2025. Knowledge cutoff: Hermes 4 405B Aug 31, 2024, Gemini 2.5 Pro Preview 06-05 Jan 31, 2025.
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.
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