GPT-5.2 Codex vs Together AI - Llama 3 8B Lite
GPT-5.2 Codex (2025) and Together AI - Llama 3 8B Lite (2025) compare a coding-specialized model against a standalone API model. GPT-5.2 Codex ships a not-yet-sourced context window, while Together AI - Llama 3 8B Lite ships a 8k-token context window. On pricing, Together AI - Llama 3 8B Lite costs $0.10/1M input tokens versus $1.75/1M for the alternative. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: GPT-5.2 Codex is coding-specialized model, while Together AI - Llama 3 8B Lite is standalone API model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | GPT-5.2 Codex | Together AI - Llama 3 8B Lite |
|---|---|---|
| Product type | Coding-specialized model | Standalone API model |
| Best for | custom coding agents, code generation, and tool loops | tool-calling agents |
| Decision fit | Coding, Agents, and Vision | Agents, Classification, and JSON / Tool use |
| Context window | — | 8k |
| Cheapest output | $14/1M tokens | $0.10/1M tokens |
| Provider routes | 1 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- GPT-5.2 Codex uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags GPT-5.2 Codex for Coding, Agents, and Vision.
- Together AI - Llama 3 8B Lite has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Together AI - Llama 3 8B Lite has the lower cheapest tracked output price at $0.10/1M tokens.
- Together AI - Llama 3 8B Lite uniquely exposes Structured outputs in local model data.
- Local decision data tags Together AI - Llama 3 8B Lite for Agents, 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-5.2 Codex
$4,900
Cheapest tracked route/tier: Vercel AI Gateway
Together AI - Llama 3 8B Lite
$105
Cheapest tracked route/tier: Together AI
Estimated monthly gap: $4,795. 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-5.2 Codex and Together AI - Llama 3 8B Lite; plan for SDK, billing, or endpoint changes.
- Together AI - Llama 3 8B Lite is $13.90/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
- Together AI - Llama 3 8B Lite adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Together AI - Llama 3 8B Lite and GPT-5.2 Codex; plan for SDK, billing, or endpoint changes.
- GPT-5.2 Codex is $13.90/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- GPT-5.2 Codex adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-12-18 | 2025-07-15 |
| Context window | — | 8k |
| Parameters | — | 8B |
| Architecture | decoder only | decoder only |
| License | Proprietary | Llama 3 Community |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | 2025-08 | 2024-03 |
Pricing and availability
| Pricing attribute | GPT-5.2 Codex | Together AI - Llama 3 8B Lite |
|---|---|---|
| Input price | $1.75/1M tokens | $0.10/1M tokens |
| Output price | $14/1M tokens | $0.10/1M tokens |
| Providers |
Capabilities
| Capability | GPT-5.2 Codex | Together AI - Llama 3 8B Lite |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | No | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: GPT-5.2 Codex, multimodal input: GPT-5.2 Codex, reasoning mode: GPT-5.2 Codex, structured outputs: Together AI - Llama 3 8B Lite, and code execution: GPT-5.2 Codex. Both models share function calling and tool use, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, GPT-5.2 Codex lists $1.75/1M input and $14/1M output tokens on the cheapest tracked provider, while Together AI - Llama 3 8B Lite lists $0.10/1M input and $0.10/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Together AI - Llama 3 8B Lite lower by about $5.33 per million blended tokens. Availability is 1 providers versus 1, so concentration risk also matters.
Choose GPT-5.2 Codex when coding workflow support are central to the workload. Choose Together AI - Llama 3 8B Lite 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.
FAQ
Which is cheaper, GPT-5.2 Codex or Together AI - Llama 3 8B Lite?
Together AI - Llama 3 8B Lite is cheaper on tracked token pricing. GPT-5.2 Codex costs $1.75/1M input and $14/1M output tokens. Together AI - Llama 3 8B Lite costs $0.10/1M input and $0.10/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is GPT-5.2 Codex or Together AI - Llama 3 8B Lite open source?
GPT-5.2 Codex is listed under Proprietary. Together AI - Llama 3 8B Lite is listed under Llama 3 Community. 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 vision, GPT-5.2 Codex or Together AI - Llama 3 8B Lite?
GPT-5.2 Codex has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, GPT-5.2 Codex or Together AI - Llama 3 8B Lite?
GPT-5.2 Codex has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, GPT-5.2 Codex or Together AI - Llama 3 8B Lite?
GPT-5.2 Codex has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run GPT-5.2 Codex and Together AI - Llama 3 8B Lite?
GPT-5.2 Codex is available on Vercel AI Gateway. Together AI - Llama 3 8B Lite is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.