What is the difference between Fireworks AI and OpenRouter?

Fireworks AI and OpenRouter are both cloud GPU providers offering different pricing models, features, and GPU availability. Use our comparison tool to see real-time pricing and feature differences.

Which is cheaper: Fireworks AI or OpenRouter?

Pricing varies by GPU model and usage requirements. Check our real-time comparison table to find the best deals for your specific needs.

Can I switch between Fireworks AI and OpenRouter?

Yes, both providers offer flexible cloud GPU services. However, consider factors like data transfer costs, setup time, and specific features when switching between providers.

Fireworks AI vs OpenRouter

Compare LLM inference API pricing between Fireworks AI and OpenRouter. Find the best rates for AI training, inference, and ML workloads.

Fireworks AI

Provider 1

Models Available

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OpenRouter

Provider 2

211

Models Available

Visit Website

Comparison Overview

214

Total LLM Models

Fireworks AI Models

211

OpenRouter Models

Direct Comparisons

LLM API Pricing Comparison

Total models: 214Both available: 1Fireworks AI: 4OpenRouter: 211

Showing 15 of 214 models

Prices per 1M tokens · Last updated: 10/25/2026, 7:06:15 PM

Model ↑	Fireworks AI	OpenRouter	Input Diff ↕
Claude Fable 5 Anthropic	Not available	$10.00 in $50.00 out	—
Claude Fable 5.1 Anthropic	Not available	$10.00 in $50.00 out	—
Claude Haiku 4.5 Anthropic	Not available	$1.00 in $5.00 out	—
Claude Haiku 5.5 Anthropic	Not available	$0.100 in $0.500 out	—
Claude Opus 4.1 Anthropic	Not available	$15.00 in $75.00 out	—
Claude Opus 4.5 Anthropic	Not available	$5.00 in $25.00 out	—
Claude Opus 4.6 Anthropic	Not available	$5.00 in $25.00 out	—
Claude Opus 4.7 Anthropic	Not available	$5.00 in $25.00 out	—
Claude Opus 4.8 Anthropic	Not available	$5.00 in $25.00 out	—
Claude Opus 5 Anthropic	Not available	$5.00 in $25.00 out	—
Claude Opus 5.5 Anthropic	Not available	$4.00 in $20.00 out	—
Claude Sonnet 4.5 Anthropic	Not available	$3.00 in $15.00 out	—
Claude Sonnet 4.6 Anthropic	Not available	$3.00 in $15.00 out	—
Claude Sonnet 5 Anthropic	Not available	$2.00 in $10.00 out	—
Claude Sonnet 5.5 Anthropic	Not available	$2.00 in $10.00 out	—

Features Comparison

Fireworks AI

100+ Open-Source Models
Text, vision, audio, image, and embedding models, including recent releases such as Kimi K3, GLM 5.2, DeepSeek V4, MiniMax M3, and Qwen3.7 Plus
Blazing Fast Inference
Industry-leading throughput and latency with fast inference engine
Fine-Tuning Suite
SFT, DPO, and reinforcement fine-tuning of models up to 1T+ parameters, from guided runs through writing your own trainer and RL loop
OpenAI- and Anthropic-Compatible API
Drop-in replacement for closed-model APIs - change the base URL to migrate, with the same SFT data format for fine-tuning
On-Demand GPUs
H100, H200, B200, B300, and GB300 deployments with per-second billing and autoscaling
Batch Processing
Async bulk inference jobs run at scale for less than standard serverless requests

OpenRouter

Unified Model Access
Single API endpoint for 500+ models from 80+ providers across text, image, video, and audio
Automatic Fallback Routing
Requests automatically route to the best available provider for each model
OpenAI-Compatible API
Drop-in replacement using the OpenAI SDK format
Provider Optimization
Routes to the fastest or cheapest provider based on your preference
Usage-Based Pricing
Pay per token with no minimum commitments or subscriptions
Prompt Caching
Reduced pricing for cached input tokens on supported models

Pros & Cons

Fireworks AI

Advantages

Lightning-fast inference with industry-leading response times
Easy-to-use API with OpenAI and Anthropic compatibility
Wide variety of optimized open-source models
Discounted pricing for cached tokens and batch inference

Considerations

Limited capacity with some serverless model limits
Primarily focused on language models over image/video generation
BYOC only available for major enterprise customers

OpenRouter

Advantages

Largest selection of models through a single API
Transparent per-token pricing with per-provider comparison for each model
Automatic failover across multiple providers
No vendor lock-in — switch models with a single parameter change

Considerations

Platform fee on pay-as-you-go usage (5.5% Standard, 8% Business)
Latency may be slightly higher due to routing layer
No fine-tuning or custom model training

Compute Services

Fireworks AI

OpenRouter

Pricing Options

Fireworks AI

Serverless Inference

Pay-per-token pricing across Standard, Priority, and Fast serverless tiers with postpaid billing and no cold starts

Cached tokens

Cached input tokens billed at a reduced rate on supported models

Batch processing

Async bulk inference billed at a discount to standard serverless requests

Embeddings

Embedding models billed per 1M input tokens, tiered by model parameter count

Fine Tuning

Supervised and preference fine tuning billed per 1M training tokens with LoRA or full-parameter options; reinforcement fine tuning billed per GPU hour

Serverless Training API

Shared always-on trainer pool for LoRA training with no provisioning or idle cost, billed per token prefilled, sampled, and trained

On-demand GPUs

Per-second billing for H100, H200, B200, B300, and GB300 GPU deployments with no start-up charges; region-restricted deployments in the US or Europe are priced at 1.25x the standard rate

Reserved capacity

Guaranteed capacity with higher rate limits and earliest access to new hardware, arranged through sales

OpenRouter

Free

25+ free models from a small set of providers, rate limited, with community support

Standard (pay-as-you-go)

Per-token model pricing plus a 5.5% platform fee, with no subscription

Business (pay-as-you-go)

8% platform fee; adds EU/US in-region routing, workload identity federation, and higher workspace limits

Enterprise

Custom agreements with fee discounts, SSO/SAML, contractual SLAs, invoicing options, a dedicated support team, and Private Endpoints as an add-on

Prompt caching

Discounted rates for cached input tokens on supported models (paid plans)

Getting Started

Fireworks AI

Get Started

1
Explore Model Library
Browse 100+ models at fireworks.ai/models
2
Test in Playground
Experiment with prompts interactively without coding
3
Generate API Key
Create an API key from user settings in your account
4
Make first API call
Use OpenAI-compatible endpoints or Fireworks SDK
5
Scale to production
Transition to on-demand GPU deployments for production workloads

OpenRouter

Get Started

1
Create an account
Sign up at openrouter.ai; an organization for your team can be set up later
2
Buy credits
Purchase credits usable with any model or provider (credit card, crypto, and more)
3
Get API key
Create an API key from your dashboard
4
Make API calls
Use OpenAI-compatible endpoints or the OpenRouter Client and Agent SDKs with your key

Support & Global Availability

Fireworks AI

Global Regions

18+ global regions across 8 cloud providers with multi-region deployments and BYOC support for enterprise

Support

Documentation, Discord community, status page, email support, and dedicated enterprise support with SLAs

OpenRouter

Global Regions

Global — routes to providers across multiple regions for optimal latency

Support

Community support on the Free plan, email support on Standard and Business, dedicated support team on Enterprise; documentation and Discord community