Reported News
Kimi K3.1 Pro live on Fireworks: 2.78T MoE, 64.7% on Sierra τ³-Banking
Fireworks announced on November 4, 2026 that Moonshot's Kimi K3.1 Pro is live on its platform: 2.78T total / 104B active parameters, 1040k input context, and first of 19 on Sierra's τ³-Banking at 64.7% in Fireworks' Specialized Intelligence Index. Serverless pricing is $2.00 uncached input, $0.20 cached input and $10.00 output per million tokens.
- Changes reported
- 5
- listed below, each from a source we read
- We tested
- Not tested yet
- reported from sources; we did not run it ourselves
- Gaps we flag
- 3
- things we could not verify
- Sources
- 1
- 1 primary, linked below
What changed
| # | What the source says | Status |
|---|---|---|
| 01 | Hosting: Moonshot's existing Kimi K3.1 Pro model is available on Fireworks serverless (pay-per-token) and dedicated deployments; model id accounts/fireworks/models/kimi-k3p1-pro. | Reported |
| 02 | Fireworks restates the model as text and vision, 2.78T total / 104B active parameters, 1040k input context, 896 experts with 16 active per token, using Kimi Delta Attention plus Gated DeepSeek Sparse Attention. | Reported |
| 03 | On Fireworks' Specialized Intelligence Index, K3.1 Pro ranks first of 19 on Sierra's τ³-Banking at 64.7%, 8.7 points ahead of Claude Opus 5.5. | Reported |
| 04 | Other Fireworks-reported SII scores include 61.0% on Factory Legacy Bench (third of 14, top open model) and a tie with Claude Opus 5.5 at 48.2% on Rogo Big Finance Benchmark. | Reported |
| 05 | Standard serverless pricing per million tokens: $2.00 uncached input, $0.20 cached input, $10.00 output. | Reported |
reported by the sourcemeasured or run by usnot verified
Primary source: Fireworks blog: Kimi K3.1 Pro on Fireworks. We are the fast, independent index; the vendor’s own page is the source of record for this release.
In the source’s words
“It ranks first of 19 on Sierra's τ³-Banking in our Specialized Intelligence Index, 8.7 points ahead of Claude Opus 5.5.”
“K3.1 Pro ranks first of 19 at 64.7%, 8.7 percentage points ahead of Claude Opus 5.5.”
“Standard serverless pricing per million tokens: $2.00 uncached input, $0.20 cached input and $10.00 output.”
Early verdict
A hosting add for an existing Moonshot model, useful if you want Fireworks serverless or dedicated capacity and care about the reported τ³-Banking lead.
Basis: Based on Fireworks' November 4 post; the model itself was already catalogued from Moonshot's earlier launch.
What we have not verified
- We did not call the Fireworks endpoint or reproduce the Specialized Intelligence Index scores.
- Parameter and context figures are restated by Fireworks from Moonshot; we did not re-verify them against Moonshot's pages for this hosting brief.
- Dedicated-deployment pricing is not listed in the post.
This brief is Reported: written from the sources below, not from running the release ourselves.
Sources
- Fireworks blog: Kimi K3.1 Pro on Fireworksprimary source · fetched 2026-11-06
Related
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