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DeepSeekReleased Aug 1, 2026

DeepSeek V4 Flash 0731 Abliterated (cebeuq)

deepseek/deepseek-v4-flash-0731-abliteratedHugging FaceChatreasoningA decensored (abliterated) rebuild of deepseek-ai/DeepSeek-V4-Flash-0731 — a 284B-parameter DeepSeek-V4 MoE agentic-coding / reasoning model — served unquantized at native FP4+FP8 across 2× NVIDIA DGX Spark (GB10, 128 GB each) with vLLM.

Input
$0.0434
USD per 1M tokens
Output
$0.0868
USD per 1M tokens
Context
1M
Its one endpoint
Max output
131K
Longest reply allowed
Modality
Text → Text

Providers

Live endpoints, cheapest first. First token is the median wait for a streamed reply; throughput covers the last day and uptime the last 24 hours.

  • fp869% offUS
    Input
    $0.0434
    Output
    $0.0868
    Context
    1M131K out
    First token
    337mslast 30 min
    Throughput
    94 tok/s
    Uptime 24h
    99.9%
ProviderContextInputOutputFirst tokenThroughputUptime 24h
Consensus ProtocolHealthyfp869% offUnited States1M131K max out$0.0434$0.0868337mslast 30 min94 tok/s99.9%

Capabilities and data

What each endpoint declares about tools, reasoning and prompt data, beside the marketplace’s own checks. The key below says what each badge means.

  • Consensus Protocolfp8Tools VerifiedReasoning Effort levelsData Zero retention
Verified
a current check called an offered tool with valid arguments
Effort levels
effort levels are declared, and none is failing checks
Zero retention
prompts are neither stored nor trained on; the claim passed marketplace review

Pricing

USD per million tokens.

ProviderInputOutputCache readCache hitEffective input
Consensus Protocolfp869% off$0.0434$0.0868$0.009396.9%$0.010364

Price history

Input price · USD per million tokens

Output price · USD per million tokens

Performance

Timing percentiles cover the labelled window: the last 30 minutes when it has enough samples, otherwise the last day. TTFT is the seconds to the first token, measured only on streamed requests; response is the seconds from request to last byte, measured on every request, streamed or not. Throughput is output tokens per second over the last day, counted only over streamed generations long enough to have a rate — a buffered answer has no generation phase, and a two-token one times the scheduler rather than the model. Tool calls is the share of the last day of tool requests this endpoint answered with a tool call, published once the day holds twenty of them; under that the cell is blank rather than a rate nothing measured.

ProviderTTFT p50p75p90p99Response p50p75p90p99Throughput p50p75p90p99Tool calls 1dRunaways 1dEmpty 1dCapacity
Consensus Protocolfp8337mslast 30 min1.31s1.46s1.97s5.89slast 30 min10.2s17.9s42.5s94 tok/s108 tok/s120 tok/s143 tok/s—0.0%0.1%239/245 free

Time to first token by hour · last 7 days

Hourly median per provider. The line spans hours with no streamed traffic; where samples are sparse, a dot marks each hour actually timed.

Throughput by hour · last 7 days

Hourly median output tokens per second per provider, over generations long enough to have a rate. The line spans hours with no answer long enough to measure; where samples are sparse, a dot marks each hour actually measured.

Benchmarks

Scores from the benchmark board. Each figure comes from the endpoint with the most evidence for that suite, and a provisional one names how much of its suite it covers.

BenchmarkScore
GPQA DiamondAccuracy74.6%complete run
GPQA DiamondAccuracy · Low reasoning effort85.8%complete run
GPQA DiamondAccuracy · High reasoning effort79.2%complete run
Reasoning GymAccuracy33.7%complete run
IFBenchPrompt-level loose accuracy44.4%complete run
AIME 2025Accuracy37.5%complete run
HMMT February 2026Accuracy30.3%complete run
BFCL v4Overall accuracy77.3%complete run
MRCR ≤32KMatch ratio85.1%complete run
MRCR 32K–128KMatch ratio83.3%complete run
MMLU-ProX LiteAccuracy64.2%complete run
ClaudeCoding agent · solved within 5 attempts51.9%provisional · 64.3% tested51.9% first try · 1.0 attempts per task · harness version 2.1.317 to 2.1.322
CodexCoding agent · solved within 5 attempts48.1%provisional · 64.3% tested48.1% first try · 1.0 attempts per task · harness version 0.166.0 to 0.167.2
DeepSeek HarnessCoding agent · solved within 5 attempts66.7%provisional · 64.3% tested66.7% first try · 1.0 attempts per task · harness version 0.2.1-rc.5 to 0.2.2-rc.1
EmpryoCoding agent · solved within 5 attempts59.3%provisional · 64.3% tested59.3% first try · 1.0 attempts per task · harness version 3.6.5
HermesCoding agent · solved within 5 attempts77.8%provisional · 64.3% tested77.8% first try · 1.0 attempts per task · harness version 2026.9.24
Oh My PiCoding agent · solved within 5 attempts33.3%provisional · 64.3% tested33.3% first try · 1.0 attempts per task · harness version 18.18.6 to 18.19.0
OpenCodeCoding agent · solved within 5 attempts65.4%provisional · 61.9% tested65.4% first try · 1.0 attempts per task · harness version 1.19.5
SleipnirCoding agent · solved within 5 attempts30.8%provisional · 61.9% tested30.8% first try · 1.0 attempts per task · harness version 0.4.70 to 0.4.71
ZCodeCoding agent · solved within 5 attempts65.4%provisional · 61.9% tested65.4% first try · 1.0 attempts per task · harness version 0.16.5

Rotating probe subsets

Diagnostic scores per endpoint from rotating dataset subsets, beside the board’s complete runs. Percentages cover graded replies only and are not full benchmark results; each belongs to the provider’s serving configuration.

ProviderGSM8KMMLUaime25math500mmlu-pro
Consensus Protocolfp8
97.7%443 graded
81.0%588 graded
43.9%57 graded
97.0%298 graded
61.8%338 graded

Benchmark answers are graded mechanically against the vendored dataset reference answers — numeric comparison of the final number for GSM8K, MATH-500 and AIME 2025, the committed multiple-choice letter for MMLU, MMLU-Pro, MMMU and MMBench, cosine ranking of the returned vectors for the Banking77 and SciDocs retrieval triplets, and per-utterance word match for LibriSpeech and FLEURS — never by another model; a reply that ran into the probe’s token cap before it committed to an answer is recorded but not graded.

Uptime

Share of successful requests and probes over the last day and week. Reliability is the share of the requests a provider accepted that it answered; turned away is the share it refused with its own 429 because it was full, which uptime counts as failures.

  • Consensus Protocolfp8
    1d 99.9%7d 99.8%reliability 1d 99.9%7d 99.9%turned away 1d 0.0%7d 0.2%Healthy

Availability by hour · last 7 days

Share of successful requests and probes per hour and provider. The line spans hours with nothing to measure; where samples are sparse, a dot marks each hour actually measured.

Activity

Prompt tokens and completion tokens per UTC day over the last 30 days. Every billed request counts, the platform's own paid probe traffic included.

Prompt tokens5.8Blast 30 days
Completion tokens91.2Mlast 30 days
Quickstart
curl https://api-staging.heimdallm.com/api/v1/chat/completions \  -H "Authorization: Bearer $HEIMDALL_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "deepseek/deepseek-v4-flash-0731-abliterated",    "messages": [{ "role": "user", "content": "Hello" }]  }'

Set HEIMDALL_API_KEY to a key from your account. See the quickstart for routing suffixes and provider preferences.

About

A decensored (abliterated) rebuild of deepseek-ai/DeepSeek-V4-Flash-0731 — a 284B-parameter DeepSeek-V4 MoE agentic-coding / reasoning model — served unquantized at native FP4+FP8 across 2× NVIDIA DGX Spark (GB10, 128 GB each) with vLLM.

Author
DeepSeek
Request parameters
frequency_penalty (-2–2), max_tokens (1–131072), min_p (0–1), presence_penalty (-2–2), reasoning_effort (none, low, medium, high), repetition_penalty (0–2), response_format (any value), seed (0–2147483647), stop (list), temperature (0–2), tool_choice (any value), tools (any value), top_k (0–200), top_p (0–1)
Licence
mit
Size
305.7B parameters, I8 weights
Tokenizer
—
Available until
—

From the model card

What the repository states about these weights, read from cebeuq/DeepSeek-V4-Flash-0731-abliterated on Nov 8, 2026.

Languages
—
Papers
—
Datasets
—
Revision
21bd923Aug 1, 2026
Downloads
1.6K
Likes
45
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