Firefunction V2 vs Trinity-Large-Preview
Firefunction V2 (2024) and Trinity-Large-Preview (2026) are compact production models from Fireworks AI and Arcee AI. Firefunction V2 ships a 32k-token context window, while Trinity-Large-Preview ships a 128k-token context window. On pricing, Trinity-Large-Preview costs $0.15/1M input tokens versus $0.90/1M 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.
Trinity-Large-Preview is ~500% cheaper at $0.15/1M; pay for Firefunction V2 only for provider fit.
Decision scorecard
Local evidence first| Signal | Firefunction V2 | Trinity-Large-Preview |
|---|---|---|
| Best for | general production evaluation | tool-calling agents and provider-routed production |
| Decision fit | General | RAG, Agents, and Long context |
| Context window | 32k | 128k |
| Cheapest output | $0.90/1M tokens | $0.45/1M tokens |
| Provider routes | 1 tracked | 3 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Use Firefunction V2 when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- Trinity-Large-Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Trinity-Large-Preview has the lower cheapest tracked output price at $0.45/1M tokens.
- Trinity-Large-Preview has broader tracked provider coverage for fallback and route flexibility.
- Trinity-Large-Preview uniquely exposes JSON / Tool use and Structured outputs in local model data.
- Local decision data tags Trinity-Large-Preview for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Firefunction V2
$945
Cheapest tracked route/tier: Fireworks AI
Trinity-Large-Preview
$233
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $713. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Firefunction V2 and Trinity-Large-Preview; plan for SDK, billing, or endpoint changes.
- Trinity-Large-Preview is $0.45/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Trinity-Large-Preview adds JSON / JSON / Tool use and Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Trinity-Large-Preview and Firefunction V2; plan for SDK, billing, or endpoint changes.
- Firefunction V2 is $0.45/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for JSON / JSON / Tool use and Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-01-29 | 2026-01-27 |
| Context window | 32k | 128k |
| Parameters | 70B | 400B |
| Architecture | Decoder Only | Mixture of Experts |
| License | Llama 3 Community | Apache 2.0OSI-approved |
| Openness | Open weights | Open source |
| Weights | Unknown | Available |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Firefunction V2 | Trinity-Large-Preview |
|---|---|---|
| Input price | $0.90/1M tokens | $0.15/1M tokens |
| Output price | $0.90/1M tokens | $0.45/1M tokens |
| Providers |
Capabilities
| Capability | Firefunction V2 | Trinity-Large-Preview |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| JSON / Tool use | No | Yes |
| Structured outputs | No | 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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Popular comparisons for Firefunction V2
Popular comparisons for Trinity-Large-Preview
Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.