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Fireworks Nexus

Frontier intelligence. Half the bill.

Drop frontier open models into the harnesses your engineers use, cutting your spend in half without sacrificing speed or quality.

Fireworks Nexus intelligent model orchestration
Cost Efficiency
33%

Savings per merged PR

Smart Routing
54%

Overall AI spend saved

Speed
100+

Tokens/second available

Nexus is the fastest path to frontier open intelligence for code generation

Token bills are exploding at 20x YoY due to limited closed-model competition. It's an impossible tradeoff: spend and ship, or ration tokens and stall. Nexus offers a better way.

Setting Claude in Nexus

Zero-friction setup

Set up in minutes with our CLI

  • •One-command setup with the Nexus CLI
  • •Works with Claude Code, Codex, OpenCode, and more
  • •Authenticate with your preferred SSO provider for Fireworks keys
  • •Choose open models or automatic model selection. No proxy, no config surgery, fully reversible
Nexus auto handling model selection

Intelligent orchestration

Auto-select the optimal model

  • •Set auto to send each task to the optimal model
  • •Difficult tasks pass through to your closed provider on your key
  • •Auto maintains a 90%+ cache hit rate, billed half price
  • •Achieve 50%+ bill savings from open-model and cache optimization
Manage budgets by user

Maximum control

Set budgets and measure savings

  • •Default limit for the account, override it per user
  • •Spend tracking by day, user, model, and API key
  • •Fast and Priority options available for 100+ TPS and reliability
  • •Track savings in the savings dashboard

Frontier open models can now tackle 80%+ of engineering tasks

Faros AI + Fireworks
Production repositories

GLM 5.2 beat Opus 4.8 on quality, speed, and cost

211 engineering tasks · 12 repositories · 7 model-and-harness routes

0.568 judge score vs. 0.521

2.4x faster 321s vs. 775s

48% lower cost $0.92 vs. $1.76

What it proves:
Open models can outperform a closed frontier default on production-like engineering work, not just public benchmarks
Fireworks Evaluation
Agentic benchmark suite

K3 tied Fable on SWE, won more terminal tasks

≈1,030 tasks · 5 work families · same harness across all tasks

92.4% SWE solve rate vs. 92.6%

11–7 solo wins across 89 terminal tasks

Up to 50x more cost-effective on long agentic loops

What it proves:
K3 delivers near-identical software-engineering quality, with strengths in security, cryptography, and long-horizon terminal work

Visibility, control, and better practices

Set your budgets. Track ROI. And give developers governed access to experiment with frontier open-source models.

Set the ceiling

One default covers everyone, and overrides handle the exceptions. A user who hits their limit can't make further requests until the billing period resets, unless you grant them an exception.

Track savings

Watch savings climb in the savings dashboard. Every dollar is queryable by day, model, user, and API key, with a raw per-event CSV export when you need the underlying rows. Measure savings, blended token rate, and more.

Keep the roster in sync

Developers authenticate through your identity provider with SSO enforcement by domain. JIT provisioning creates accounts on first sign-in. SCIM directory sync with Okta, Microsoft Entra ID, or Google Workspace adds and removes users as your directory changes.

Empower developers

Developers get fast, governed access to frontier open models to experiment and optimize. Check models and pricing in the Nexus CLI or the Fireworks dashboard to see exactly where you stand on spend.

Set user budgets in the Fireworks dashboard

Take back control

Admins see every user's spend, limit, and override. Team members see their own and can request an increase before reaching their limit. Set the budget in Settings or through the REST API.

Install the Nexus CLI and set up Cursor

Bye bye, tokenmaxxing

Engineers maintain their tools and flow state with Nexus. Set up in minutes. Create more token headroom with auto, your model autopilot, or pin your own model choices.

Nexus auto intelligent orchestration between models

Optimization on autopilot

Nexus auto scores every request and takes the most cost-efficient path between open and closed models when available. For open models only, developers can set the provider to Fireworks.

Macroscope logo - dark

“Frontier models took us to product-market fit; now we're driving signal-to-noise further — more real bugs, fewer false positives. At our scale that's a training problem, and Fireworks makes it easy.”

Rob Bishop
Rob Bishop | Co-Founder at Macroscope
Sourcegraph

"Fireworks has been a fantastic partner in building AI dev tools at Sourcegraph. Their fast, reliable model inference lets us focus on fine-tuning, AI-powered code search, and deep code context, making Cody the best AI coding assistant. They are responsive and ship at an amazing pace."

Beyang Liu Testimonial
Beyang Liu | CTO at Sourcegraph
Gumloop

"Tokenmaxxing had a good run. But the teams that win with AI from here will be the ones getting more done for less, not the ones spending the most…After optimizing our harness for open weight models, we secretly swapped one of our most used internal agents from Opus 4.8 to GLM-5.2, and no one at the company noticed. We are now seeing cost savings of up to 72%."


Max Brodeur-Urbas | CEO at Gumloop
Macroscope logo - dark

“Frontier models took us to product-market fit; now we're driving signal-to-noise further — more real bugs, fewer false positives. At our scale that's a training problem, and Fireworks makes it easy.”

Rob Bishop
Rob Bishop | Co-Founder at Macroscope
Sourcegraph

"Fireworks has been a fantastic partner in building AI dev tools at Sourcegraph. Their fast, reliable model inference lets us focus on fine-tuning, AI-powered code search, and deep code context, making Cody the best AI coding assistant. They are responsive and ship at an amazing pace."

Beyang Liu Testimonial
Beyang Liu | CTO at Sourcegraph
Gumloop

"Tokenmaxxing had a good run. But the teams that win with AI from here will be the ones getting more done for less, not the ones spending the most…After optimizing our harness for open weight models, we secretly swapped one of our most used internal agents from Opus 4.8 to GLM-5.2, and no one at the company noticed. We are now seeing cost savings of up to 72%."


Max Brodeur-Urbas | CEO at Gumloop
Macroscope logo - dark

“Frontier models took us to product-market fit; now we're driving signal-to-noise further — more real bugs, fewer false positives. At our scale that's a training problem, and Fireworks makes it easy.”

Rob Bishop
Rob Bishop | Co-Founder at Macroscope

Leave failed experiments in the past

Tried self-hosting open models in the past? Open weights are clearing performance bars, but that wasn't the only barrier to your success. Here's why this time is different:

Industry-leading open inference engine

Fireworks has built a fully disaggregated inference engine optimized at every layer, from custom kernels to memory management to adaptive caching. The platform now serves 40T+ tokens daily on a global scale with zero data retention, US-only hosting options, and SOC 2, ISO 27001, and ISO 42001 certifications, plus HIPAA compliance. We maintain commercial agreements for leading frontier open models and offer zero-day access with optimized performance.

Intelligent routing that's native to the inference stack

While it's true you can configure a router in a weekend, a badly built ladder performs worse than no routing at all. Research by Arize proved naive escalation across ten models performed worse than every single model tested on its own. The judgment is the stack. For example, Fireworks holds a 90%+ cache hit rate on routine coding traffic, and cached input runs at half price. Nexus auto factors hit rate into every orchestration decision.

Flexibility with your existing stack

Have a gateway? Keep it. Nexus has a documented LiteLLM Proxy integration. Use it for policy, fan-out, and fallbacks, and let Nexus auto own the cost-versus-quality call on tasks inside it.

Interested in learning more?

Schedule a call with a forward-deployed engineer to discuss your code generation workloads and see Nexus in action.