Gemini 2.5 Pro Preview 06-05 vs o4-mini-deep-research vs Palmyra X5
Too close to call on our weighted score (Gemini 2.5 Pro Preview 06-05 48, Palmyra X5 47, o4-mini-deep-research 37). The right pick depends on what you value most.
GoogleGemini 2.5 Pro Preview 06-05
48/100- ECI—
- Price$1.22 / $9.75
- Context1.05M
OpenAIo4-mini-deep-research
37/100- ECI—
- Price$1.80 / $7.20
- Context200K
Writer
Palmyra X5
47/100- ECI—
- Price$0.60 / $6.00
- Context1M
Too close to call
It is close. Our weighted score puts them within a point (Gemini 2.5 Pro Preview 06-05 48/100, Palmyra X5 47/100, o4-mini-deep-research 37/100), so choose by what matters most for your work: Palmyra X5 on price and Gemini 2.5 Pro Preview 06-05 for long inputs. 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 pricePalmyra X5Palmyra X5 $1.95 · o4-mini-deep-research $3.15 · 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 · Palmyra X5 1,000,000 · o4-mini-deep-research 200,000 tokens
- Widest inputsGemini 2.5 Pro Preview 06-05Gemini 2.5 Pro Preview 06-05: Text, Images, PDFs, Audio · o4-mini-deep-research: Text, Images · Palmyra X5: Text, Images
- Self-hostingNo open weightsAll three are available only through APIs
| Measure | Weight | Gemini 2.5 Pro Preview 06-05 | o4-mini-deep-research | Palmyra X5 |
|---|---|---|---|---|
| Price | 50% | 24 | 25 | 35 |
| Inputs & features | 30% | 80 | 60 | 60 |
| Context window | 20% | 61 | 32 | 60 |
| Overall | 100% | 48/100 | 37/100 | 47/100 |
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 | Gemini 2.5 Pro Preview 06-05Google | o4-mini-deep-researchOpenAI | Palmyra X5Writer |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | — | — | — |
| ECI rank | — | — | — |
| Price per million tokens | |||
| Input | $1.22 | $1.80 | $0.60 (best) |
| Output | $9.75 | $7.20 | $6.00 (best) |
| Cached input | — | — | — |
| Blended (3:1) | $3.35 | $3.15 | $1.95 (best) |
| Long-context rate | Same rate | Same rate | Same rate |
| Price source | Median of 4 providers | Median of 1 providers | Median of 4 providers |
| Limits | |||
| Context window | 1,048,576 tokens (best) | 200,000 tokens | 1,000,000 tokens |
| Max output | 65,536 tokens | 100,000 tokens (best) | 8,192 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | Yes | Yes |
| PDFs | Yes | No | No |
| Audio | Yes | No | No |
| Video | No | No | No |
| Reasoning | Yes | Yes | Yes |
| Tool calling | Yes | Yes | Yes |
| Structured output | No | No | No |
| Availability | |||
| Weights | Proprietary | Proprietary | Proprietary |
| API model ID | — | — | — |
| API providers | 4 (best) | 1 | 4 (best) |
| Released | Jun 5, 2025 | Jun 26, 2025 | Apr 28, 2025 |
| Knowledge cutoff | Jan 31, 2025 | May 2024 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Gemini 2.5 Pro Preview 06-05$31.69
- o4-mini-deep-research$32.40
- Palmyra X5$18.00
Which should you choose?
Which is better: Gemini 2.5 Pro Preview 06-05, o4-mini-deep-research or Palmyra X5?
It is close. Our weighted score puts them within a point (Gemini 2.5 Pro Preview 06-05 48/100, Palmyra X5 47/100, o4-mini-deep-research 37/100), so choose by what matters most for your work: Palmyra X5 on price and Gemini 2.5 Pro Preview 06-05 for long inputs. 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, Gemini 2.5 Pro Preview 06-05, o4-mini-deep-research or Palmyra X5?
Palmyra X5 is cheaper at $0.60 input / $6.00 output per million tokens (median across 4 API providers). o4-mini-deep-research costs $1.80 input / $7.20 output per million tokens (median across 1 API provider); 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 $1.95 per million tokens for Palmyra X5 versus $3.15 for o4-mini-deep-research (1.6× as much) and $3.35 for Gemini 2.5 Pro Preview 06-05 (1.7× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. Gemini 2.5 Pro Preview 06-05 has not been scored yet, o4-mini-deep-research has not been scored yet and Palmyra X5 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Gemini 2.5 Pro Preview 06-05, o4-mini-deep-research and Palmyra X5 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?
Gemini 2.5 Pro Preview 06-05 has the largest context window at 1,048,576 tokens, against 1,000,000 for Palmyra X5 and 200,000 for o4-mini-deep-research. Maximum output per response: Gemini 2.5 Pro Preview 06-05 up to 65,536, o4-mini-deep-research up to 100,000, Palmyra X5 up to 8,192 tokens.
Which can read images, PDFs, audio or video?
Gemini 2.5 Pro Preview 06-05 accepts text, images, PDFs and audio; o4-mini-deep-research accepts text and images; Palmyra X5 accepts text and images. Gemini 2.5 Pro Preview 06-05 handles the widest range of inputs.
Are any of these open source?
No. Gemini 2.5 Pro Preview 06-05, o4-mini-deep-research and Palmyra X5 are proprietary and only available through APIs and apps.
Which is newer?
o4-mini-deep-research is the newest, released Jun 26, 2025. Gemini 2.5 Pro Preview 06-05 came out Jun 5, 2025; Palmyra X5 came out Apr 28, 2025. Knowledge cutoff: Gemini 2.5 Pro Preview 06-05 Jan 31, 2025, o4-mini-deep-research May 2024.
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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