How popular is Fireworks AI compared to other AI tools?

Among independent inference platforms Fireworks AI is the largest by reported usage and valuation as of October 2026. On July 15, 2026 it announced a $1.505 billion Series D at a $17.5 billion valuation, an annualized revenue run rate above $1 billion, and more than 40 trillion tokens served per day, over 95% of them from models specialised on customers' own data. Customers it names include Cursor and Harvey. It is infrastructure that developers build on, so it has far fewer end users than consumer apps like ChatGPT.

How popular is Together AI compared to other AI tools?

Together AI says it powers over a million developers. On July 1, 2026 it announced an $800 million Series C at an $8.3 billion post-money valuation, led by Aramco Ventures, and said its annual bookings crossed $1.15 billion in the previous quarter. That puts it level with Fireworks on revenue scale and well ahead on developer count, but at about half Fireworks' valuation.

Which is bigger, Fireworks AI, Together AI or Baseten?

By valuation: Fireworks $17.5 billion (July 2026), Baseten $13 billion (June 2026), Together AI $8.3 billion (July 2026). By revenue, Fireworks reports a run rate above $1 billion and Together annual bookings above $1.15 billion; Baseten reports 20x revenue growth and 40x inference-volume growth in a year without a dollar figure. By developers, Together's 1 million+ is the only published count.

Should I choose an inference provider by popularity?

Use popularity as a risk filter, not a decision. All three are well funded and serve production customers. Choose by fit: Together for the widest open-model catalog plus GPU clusters, Fireworks for fine-tuned and specialised models at high throughput, Baseten for deploying your own models on dedicated GPUs. Price is close on popular models: gpt-oss-120b lists at $0.15 input and $0.60 output per million tokens on both Fireworks and Together.

Quick Answer

Fireworks AI and Together AI Popularity vs Other AI Tools

Published: October 17, 2026

The short answer

Fireworks AI and Together AI are the two most widely used independent inference platforms in 2026, roughly tied on revenue, with Fireworks bigger by tokens served and valuation and Together bigger by developer count. They are infrastructure — APIs and GPUs developers build on — so their “popularity” is measured in tokens, revenue and developers, not app downloads.

The numbers side by side

Signal (company-reported)	Fireworks AI	Together AI	Baseten
Latest round	$1.505B Series D, announced July 15, 2026	$800M Series C, July 1, 2026	$1.5B Series F, June 22, 2026
Valuation	$17.5B	$8.3B post-money	$13B
Revenue	>$1B annualized run rate	>$1.15B annual bookings (prior quarter)	20x growth in a year (no figure)
Usage	>40 trillion tokens/day	>1 million developers	40x inference-volume growth in a year
Named customers	Cursor, Harvey	Cursor, Cognition, Decagon (press release)	Cursor, Notion, Lovable, Harvey
Lead investors	Atreides, Index Ventures, TCV	Aramco Ventures	Altimeter, Conviction, Spark Capital

Figures are from each company’s own announcement; none is audited. Note that “run rate”, “bookings” and “growth” are different measures, so do not rank Fireworks and Together by revenue to the decimal.

What the numbers say

Fireworks is the volume leader. Forty trillion tokens a day is the largest usage figure any independent inference company has published, and 95% of it comes from customer-specialised models. Fireworks’ pitch has moved from “fast open-model API” to “train and serve your own model”.
Together has the broadest developer base. A million-plus developers reflects its self-serve serverless catalog and GPU clusters; its funding is aimed at growing its compute footprint.
Baseten is the dedicated-deployment specialist. It does not publish dollar revenue, but its valuation sits between the two, and its customers run their own models on its GPUs.
Against other AI tools: these companies are far smaller than the model labs whose APIs they compete with, and they share customers — Cursor appears on all three lists, a sign that large AI products split traffic across several providers.

Which one to use

If you need…	Pick	Why
The widest catalog of open models, serverless, plus GPU clusters	Together AI	Broadest self-serve offer; dedicated H100 at $5.49/GPU-hour on demand
To fine-tune and serve a specialised model at high throughput	Fireworks AI	Built around customer-specialised models
To deploy your own custom model with autoscaling and compliance	Baseten	Dedicated deployments; H100 at $0.10833/minute (~$6.50/hour)
The cheapest tokens on a popular open model	Compare per model	gpt-oss-120b is $0.15/$0.60 per MTok on both Fireworks and Together

Popularity matters for one thing: vendor risk. All three raised large rounds in mid-2026 and serve well-known production customers, so none is a fragile choice. Run a two-provider setup for failover and pick each workload on latency, price and model availability. For closed-model rates, see current API prices.

Last verified: October 17, 2026.

The short answer

The numbers side by side

What the numbers say

Which one to use

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