of DeepSeek V4 Pro 0813's structured outputs fail on CoreWeave (fp8).
Updated October 31, 2026 · How we measure
Structured-output index
The same model breaks your pipeline's structured outputs 15× more often on some inference providers than on others. Find the best one for your pipelines.
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| # | Provider | Structured outputs a day | $ in / out per M | Tokens/s | Uptime | |
|---|---|---|---|---|---|---|
| 1 | Cloudflare# | 0.39% | 7.0k | $1.32 / $3.96 | 36 | 99.7% |
| 2 | Nebius Token Factoryfp8# | 0.47% | 3.3k | $1.32 / $3.96 | 70 | 81.3% |
| 3 | Ionstream# | 0.53% | 20k | $0.37 / $2.93 | 36 | 100.0% |
| 4 | Together# | 0.83% | 9.6k | $1.32 / $3.96 | 119 | 99.4% |
| 5 | DeepInfrafp8# | 1.09% | 13k | $1.30 / $2.60 | 52 | 99.8% |
| 6 | DekaLLM# | 1.43% | 2.1k | $0.88 / $3.80 | 43 | 99.2% |
| 7 | AtlasCloudfp8# | 1.48% | 6.6k | $1.32 / $3.96 | 24 | 99.7% |
| 8 | Baidu Qianfanfp8# | 1.62% | 36k | $0.28 / $0.85 | 41 | 100.0% |
| 9 | Sail Researchfp4# | 1.81% | 62k | $0.68 / $1.20 | 49 | 100.0% |
| 10 | Wafermxfp4# | 2.02% | 46k | $0.12 / $4.00 | 96 | 99.7% |
| 11 | Alibaba Cloud Int.# | 3.60% | 9.3k | $0.58 / $1.74 | 26 | 99.0% |
| 12 | Parasailfp8# | 3.61% | 1.5k | $1.32 / $3.96 | 34 | 99.6% |
| 13 | CoreWeavefp8# | 4.69% | 13k | $1.31 / $3.96 | 128 | 99.1% |
Also ignored, under 1,000 structured outputs a day: DigitalOcean 3.29%, Venice 5.32%.
Recommended OpenRouter settings for DeepSeek V4 Pro 0813
{
"provider": {
"order": [
"cloudflare",
"nebius/fp8",
"ionstream"
],
"ignore": [
"digitalocean",
"alibaba",
"parasail/fp8",
"coreweave/fp8",
"venice"
]
}
}Give llms.txt to your agent
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And which provider to use.
For model makers
Broken structured outputs carry your model's name
Your users don't see the provider. They see your model failing.
as often on CoreWeave (fp8) as on Cloudflare, its best provider.
broken structured outputs a day across its 13 providers.
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