o3-deep-research vs Voxtral Small 24B 2507
Voxtral Small 24B 2507 comes out ahead, 55 to 24 on our weighted score, and it is the cheaper option too.
OpenAIo3-deep-research
24/100- ECI—
- Price$9.00 / $36.00
- Context200K
- Our pick
Mistral AIVoxtral Small 24B 2507
55/100- ECI—
- Price$0.10 / $0.40
- Context33K
Add a model
Make it a three-way comparison.
Voxtral Small 24B 2507 is our pick
Voxtral Small 24B 2507 is the better all-round choice, scoring 55/100 against o3-deep-research (24). It leads on price. o3-deep-research wins on inputs & features 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 priceVoxtral Small 24B 2507Voxtral Small 24B 2507 $0.175 · o3-deep-research $15.75 per 1M tokens (3:1 blend)
- Longest contexto3-deep-researcho3-deep-research 200,000 · Voxtral Small 24B 2507 32,768 tokens
- Widest inputsSame inputso3-deep-research: Text, Images · Voxtral Small 24B 2507: Text, Audio
- Self-hostingVoxtral Small 24B 2507Publishes downloadable weights (Apache 2.0)
| Measure | Weight | o3-deep-research | Voxtral Small 24B 2507 |
|---|---|---|---|
| Price | 50% | 0 | 82 |
| Inputs & features | 30% | 60 | 45 |
| Context window | 20% | 32 | 0 |
| Overall | 100% | 24/100 | 55/100 |
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 | o3-deep-researchOpenAI | Voxtral Small 24B 2507Mistral AI |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $9.00 | $0.10 (best) |
| Output | $36.00 | $0.40 (best) |
| Cached input | — | — |
| Blended (3:1) | $15.75 | $0.175 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 1 providers | Official Mistral API |
| Limits | ||
| Context window | 200,000 tokens (best) | 32,768 tokens |
| Max output | 100,000 tokens (best) | 32,768 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | No | Yes |
| Video | No | No |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Proprietary | OpenApache 2.0 |
| API model ID | — | voxtral-small-latest |
| API providers | 1 | 10 (best) |
| Released | Jun 26, 2025 | Jul 15, 2025 |
| Knowledge cutoff | 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.
- o3-deep-research$162.00
- Voxtral Small 24B 2507$1.80
Which should you choose?
Which is better: o3-deep-research or Voxtral Small 24B 2507?
Voxtral Small 24B 2507 is the better all-round choice, scoring 55/100 against o3-deep-research (24). It leads on price. o3-deep-research wins on inputs & features 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, o3-deep-research or Voxtral Small 24B 2507?
Voxtral Small 24B 2507 is cheaper at $0.10 input / $0.40 output per million tokens (official Mistral API price). o3-deep-research costs $9.00 input / $36.00 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.175 per million tokens for Voxtral Small 24B 2507 versus $15.75 for o3-deep-research (90× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. o3-deep-research has not been scored yet and Voxtral Small 24B 2507 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for o3-deep-research and Voxtral Small 24B 2507 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?
o3-deep-research has the largest context window at 200,000 tokens, against 32,768 for Voxtral Small 24B 2507. Maximum output per response: o3-deep-research up to 100,000, Voxtral Small 24B 2507 up to 32,768 tokens.
Which can read images, PDFs, audio or video?
o3-deep-research accepts text and images; Voxtral Small 24B 2507 accepts text and audio. They handle the same number of input types.
Are any of these open source?
Voxtral Small 24B 2507 publishes its weights (Apache 2.0) and can be self-hosted; o3-deep-research is proprietary.
Which is newer?
Voxtral Small 24B 2507 is the newest, released Jul 15, 2025. o3-deep-research came out Jun 26, 2025. Knowledge cutoff: o3-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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