Grok 4.3 vs Together AI - Llama 3 8B Lite
Grok 4.3 (2026) and Together AI - Llama 3 8B Lite (2025) are frontier reasoning models from xAI and AI at Meta. Grok 4.3 ships a 1m-token context window, while Together AI - Llama 3 8B Lite ships a 8k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Grok 4.3 fits 122x more tokens; pick it for long-context work and Together AI - Llama 3 8B Lite for tighter calls.
Decision scorecard
Local evidence first| Signal | Grok 4.3 | Together AI - Llama 3 8B Lite |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | tool-calling agents |
| Decision fit | RAG, Agents, and Long context | Agents, Classification, and JSON / Tool use |
| Context window | 1m | 8k |
| Cheapest output | $2.50/1M tokens | $0.10/1M tokens |
| Provider routes | 5 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Grok 4.3 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Grok 4.3 has broader tracked provider coverage for fallback and route flexibility.
- Grok 4.3 uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Grok 4.3 for RAG, Agents, and Long context.
- Together AI - Llama 3 8B Lite has the lower cheapest tracked output price at $0.10/1M tokens.
- 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.
Grok 4.3
$1,625
Cheapest tracked route/tier: xAI Console
Together AI - Llama 3 8B Lite
$105
Cheapest tracked route/tier: Together AI
Estimated monthly gap: $1,520. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Grok 4.3 and Together AI - Llama 3 8B Lite; plan for SDK, billing, or endpoint changes.
- Together AI - Llama 3 8B Lite is $2.40/1M 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.
- No overlapping tracked provider route is sourced for Together AI - Llama 3 8B Lite and Grok 4.3; plan for SDK, billing, or endpoint changes.
- Grok 4.3 is $2.40/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Grok 4.3 adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-06 | 2025-07-15 |
| Context window | 1m | 8k |
| Parameters | ~0.5T | 8B |
| Architecture | - | Decoder Only |
| License | Proprietary | Llama 3 Community |
| Openness | Proprietary | Open weights |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-11 | 2024-03 |
Pricing and availability
| Pricing attribute | Grok 4.3 | Together AI - Llama 3 8B Lite |
|---|---|---|
| Input price |
| $0.10/1M tokens |
| Output price |
| $0.10/1M tokens |
| Providers |
Capabilities
| Capability | Grok 4.3 | Together AI - Llama 3 8B Lite |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | No |
| JSON / Tool use | Yes | Yes |
| 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.
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Last reviewed: 2026-07-10. Data sourced from public model cards and provider documentation.