GPT-4o Search Preview vs Together AI Qwen2-72B-Instruct
GPT-4o Search Preview (2025) and Together AI Qwen2-72B-Instruct (2024) are compact production models from OpenAI and Alibaba. GPT-4o Search Preview ships a 128k-token context window, while Together AI Qwen2-72B-Instruct ships a 33k-token context window. On pricing, Together AI Qwen2-72B-Instruct costs $0.70/1M input tokens versus $2.50/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Together AI Qwen2-72B-Instruct is ~257% cheaper at $0.70/1M; pay for GPT-4o Search Preview only for long-context analysis.
Decision scorecard
Local evidence first| Signal | GPT-4o Search Preview | Together AI Qwen2-72B-Instruct |
|---|---|---|
| Best for | general production evaluation | general production evaluation |
| Decision fit | RAG, Long context, and Classification | Classification and JSON / Tool use |
| Context window | 128k | 33k |
| Cheapest output | $10/1M tokens | $0.70/1M tokens |
| Provider routes | 1 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- GPT-4o Search Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Local decision data tags GPT-4o Search Preview for RAG, Long context, and Classification.
- Together AI Qwen2-72B-Instruct has the lower cheapest tracked output price at $0.70/1M tokens.
- Local decision data tags Together AI Qwen2-72B-Instruct for Classification and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-4o Search Preview
$4,500
Cheapest tracked route/tier: OpenRouter
Together AI Qwen2-72B-Instruct
$735
Cheapest tracked route/tier: Together AI
Estimated monthly gap: $3,765. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for GPT-4o Search Preview and Together AI Qwen2-72B-Instruct; plan for SDK, billing, or endpoint changes.
- Together AI Qwen2-72B-Instruct is $9.30/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- No overlapping tracked provider route is sourced for Together AI Qwen2-72B-Instruct and GPT-4o Search Preview; plan for SDK, billing, or endpoint changes.
- GPT-4o Search Preview is $9.30/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-02-26 | 2024-06-07 |
| Context window | 128k | 33k |
| Parameters | — | 72B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2023-10 | - |
Pricing and availability
| Pricing attribute | GPT-4o Search Preview | Together AI Qwen2-72B-Instruct |
|---|---|---|
| Input price | $2.50/1M tokens | $0.70/1M tokens |
| Output price | $10/1M tokens | $0.70/1M tokens |
| Providers |
Capabilities
| Capability | GPT-4o Search Preview | Together AI Qwen2-72B-Instruct |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Deep dive
The capability footprint is close: both models cover structured outputs. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.
For cost, GPT-4o Search Preview lists $2.50/1M input and $10/1M output tokens on the cheapest tracked provider, while Together AI Qwen2-72B-Instruct lists $0.70/1M input and $0.70/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Together AI Qwen2-72B-Instruct lower by about $4.05 per million blended tokens. Availability is 1 providers versus 1, so concentration risk also matters.
Choose GPT-4o Search Preview when long-context analysis and larger context windows are central to the workload. Choose Together AI Qwen2-72B-Instruct when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, GPT-4o Search Preview or Together AI Qwen2-72B-Instruct?
GPT-4o Search Preview supports 128k tokens, while Together AI Qwen2-72B-Instruct supports 33k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, GPT-4o Search Preview or Together AI Qwen2-72B-Instruct?
Together AI Qwen2-72B-Instruct is cheaper on tracked token pricing. GPT-4o Search Preview costs $2.50/1M input and $10/1M output tokens. Together AI Qwen2-72B-Instruct costs $0.70/1M input and $0.70/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is GPT-4o Search Preview or Together AI Qwen2-72B-Instruct open source?
GPT-4o Search Preview is listed under Proprietary. Together AI Qwen2-72B-Instruct is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for structured outputs, GPT-4o Search Preview or Together AI Qwen2-72B-Instruct?
Both GPT-4o Search Preview and Together AI Qwen2-72B-Instruct expose structured outputs. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run GPT-4o Search Preview and Together AI Qwen2-72B-Instruct?
GPT-4o Search Preview is available on OpenRouter. Together AI Qwen2-72B-Instruct is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
When should I pick GPT-4o Search Preview over Together AI Qwen2-72B-Instruct?
Together AI Qwen2-72B-Instruct is ~257% cheaper at $0.70/1M; pay for GPT-4o Search Preview only for long-context analysis. If your workload also depends on long-context analysis, start with GPT-4o Search Preview; if it depends on provider fit, run the same evaluation with Together AI Qwen2-72B-Instruct.
Continue comparing
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.