DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

← all builds & scores for DeepSeek V4.1 Flash
pass rate
58%
138 of 238 tests fully correct
run at a glance
avg throughput
209.9
tok/s · 215 over window
avg output
3.2K
tok / test
avg reasoning
3.1K
tok / test · 97% of output
vram peak
not measured
total tokens
2.4M
1.6M in · 769.5K out
performance

Speed, output & result

Throughputpeak 347 tok/s
375300225150750
Output
12.5K10K7.5K5K2.5K0
result138 pass · 100 fail
tools-ascii-checksum · failtools-isbn-check · passtools-modexp-rotation · failtools-base64-envelope · failtools-log-injection · passtools-threshold-fires · passtools-refund-prorated · passtools-threshold-375gib · passtools-cron-step · failtools-mirror-config · passtools-three-way-split · passtools-window-cross-midnight · passtools-split-fleet · passtools-refund-batch · passtools-fx-repricing · passtools-threshold-matrix · passtools-ratelimit-fleet · failtools-portfolio-rebalance · passtools-maintenance-cascade · passtools-tier-quotes · passtools-fx-normalize · passtools-topo-schedule · passtools-adversarial-dag-dispatch · passtools-adversarial-ledger-netting · passtools-adversarial-calendar-roll · failtools-adversarial-xor-recovery · failtools-adversarial-call-auction · failstruct-string-forensics · passstruct-base-radix · passstruct-collatz-703 · failstruct-mirror-sort · passstruct-utc-forensics · passstruct-typed-traps · passstruct-escape-gauntlet · passstruct-cents-invoice · passstruct-sorted-events · passstruct-derived-consts · passstruct-letter-histogram · passstruct-unit-ladder · passstruct-ledger-aggregates · failstruct-warehouse-census · failstruct-survey-tally · failstruct-timeseries-stats · failstruct-grade-rollup · failstruct-loglevel-census · failstruct-invoice-cascade · failstruct-matrix-margins · failstruct-bigint-chain · passstruct-edge-degrees · failstruct-adversarial-journal-replay · failstruct-adversarial-scc-census · passstruct-adversarial-business-accrual · failstruct-adversarial-stack-transcript · failstruct-adversarial-generated-matrix · passrag-fx-ledger · failrag-roster-window · passrag-quota-mixed-units · failrag-escalation-parity · passrag-derived-retention · passrag-failed-minutes · failrag-weighted-sla · passrag-sku-delta · failrag-version-pin · passrag-grep-count · passrag-two-phase-quota · passrag-abstain-inference-bait · passrag-weighted-sla-fleet · failrag-fx-ledger-balance · failrag-retention-audit · failrag-inventory-final · failrag-failed-run-minutes · passrag-ticket-filter · passrag-quota-allocation · passrag-invoice-aging · passrag-headcount-dept · passrag-weighted-score · passrag-adversarial-bitemporal-policy · passrag-adversarial-lineage-incident-join · failrag-adversarial-contract-precedence · passrag-adversarial-access-resolution · passrag-adversarial-provenance-corrections · failctx-len-10 · passctx-len-25 · passctx-len-50 · passctx-len-75 · passctx-len-100 · passctx-recency-override · passctx-hard-negatives · passctx-multi-needle-sum · passctx-count-exact-tag · passctx-multihop-chain · passctx-filter-threshold · passctx-conflict-scope · passctx-nth-occurrence · passctx-adversarial-pointer-cycle · passctx-adversarial-seventh-checkpoint · passctx-adversarial-scoped-revisions · passctx-adversarial-multihop-appendices · passctx-adversarial-conjunctive-needle · passcode-stack-vm · passcode-glob-match · failcode-iso-weekdate · failcode-crc32-utf8 · failcode-introot-dec · failcode-reverse-clusters · failcode-bankers-round-dec · failcode-iso-duration · failcode-topo-or-cycles · failcode-decode-nested · failcode-normalize-ranges · passcode-justify-text · failcode-glyph-fold · passcode-toll-fare · passcode-rune-score · passcode-fold-sum · passcode-fib-sum-mod · passcode-big-modpow · failcode-grid-paths · failcode-mod-luhn · passcode-token-stack-vm · failcode-clock-chain · failcode-adversarial-huge-recurrence · passcode-adversarial-assignment-lexicographic · passcode-adversarial-regex-language-count · failcode-adversarial-periodic-shortest-path · failcode-adversarial-exact-rational-parser · passreason-mult-15x15 · passreason-digit-sum-2-333 · failreason-modexp · passreason-collatz-steps · passreason-smallest-multiple · failreason-prime-census · passreason-anchored-sum · passreason-forgetful-host · passreason-wide-boat · passreason-long-multiplication · passreason-digit-sum-power · passreason-century-leap · passreason-crt-trio · passreason-hexad-chain · failreason-quad-product · failreason-power-tower · failreason-recurrence-sum · failreason-crt-fib-inverse · failreason-base-digit-chain · failreason-triple-modexp · failreason-factorial-sum · failreason-fib-pair-digits · failreason-grand-octet · failreason-adversarial-recurrence-sum · failreason-adversarial-exactly-three-divisors · failreason-adversarial-noncoprime-crt · failreason-adversarial-million-grid · failreason-adversarial-combinatorial-fusion · failinstr-mirror-90 · passinstr-reverse-lex-30 · passinstr-rot13-swapcase · passinstr-every-third · passinstr-acrostic-robust · failinstr-e-atlas · passinstr-acrostic-solid · passinstr-reverse-long-word · passinstr-abc-ladder · passinstr-o-census · passinstr-word-lathe · passinstr-self-count · passinstr-interleave · passinstr-word-pipeline · failinstr-position-cipher · failinstr-interleave-prune · failinstr-vigenere · failinstr-columnar-transpose · failinstr-rle-encode · failinstr-reverse-vowelcase · passinstr-atbash-shift · failinstr-caesar-decode · failinstr-mega-chain · failinstr-adversarial-coprime-block-cipher · failinstr-adversarial-token-permutation · failinstr-adversarial-grid-selection · failinstr-adversarial-bwt-move-to-front · failinstr-adversarial-byte-pipeline · failclass-bracket-mode-a · passclass-bracket-mode-b · passclass-popcount-mod4 · failclass-s-census · passclass-factor-trio-a · failclass-factor-trio-b · passclass-relation-triple · passclass-anagram-triple · passclass-weekday-far · passclass-needle-census · passclass-empty-set-syllogism · passclass-mod-residue · passclass-char-atlas · passclass-longest-run · passclass-weighted-checksum · failclass-cipher-runsum · failclass-mod97-residue · failclass-rolling-hash · failclass-pattern-census · failclass-bracket-maxdepth · failclass-weighted-digit-mod · failclass-ascending-transitions · failclass-frequency-signature · failclass-case-swings · failclass-adversarial-planted-3sat · failclass-adversarial-dfa-equivalence · passclass-adversarial-graph-family · passclass-adversarial-lfsr-signature · passclass-adversarial-simpson-direction · passsum-log-forensics · passsum-outage-union · passsum-dependency-diff · passsum-session-census · passsum-expense-exact · passsum-incident-json · passsum-budgeted-facts · passsum-spelled-out · passsum-clean-headline · failsum-forced-paraphrase · passsum-priority-actions · passsum-growth-delta · passsum-reimbursement-total · failsum-outage-window-union · failsum-lockfile-diff · failsum-event-stream-census · failsum-log-severity · failsum-poll-tally · failsum-expense-oneliner · failsum-headcount-24mo · passsum-incident-timeline · passsum-revenue-growth · passsum-adversarial-release-replay · passsum-adversarial-outage-concurrency · passsum-adversarial-trial-meta · passsum-adversarial-consolidation · passsum-adversarial-decision-log · pass
TOOL
STRUCT
RAG
CTX
CODE
REASON
INSTR
CLASS
SUM
memorynot measured

one reading per test, in suite order · the result tape marks each test pass (dim) or fail (bright).

by category

Pass rate per category

9
Tool Calling19/2770%score 78
Structured Output14/2752%score 52
RAG / Retrieval QA17/2763%score 63
Context Recall18/18100%score 100
Coding11/2741%score 41
Reasoning & Math11/2839%score 39
Instruction Following13/2846%score 46
Classification16/2955%score 55
Summarization19/2770%score 70
responses

Test-by-test results

Tool Calling19/2770%score 78
Structured Output14/2752%score 52
RAG / Retrieval QA17/2763%score 63
Context Recall18/18100%score 100
Coding11/2741%score 41
Reasoning & Math11/2839%score 39
Instruction Following13/2846%score 46
Classification16/2955%score 55
Summarization19/2770%score 70
run record
run

This run

suite
starter@v1
ran at
2026-09-10 13:29 UTC
record id 
config

Deployment configuration

harness
openrouter
quantization
context
1.0M
temperature
0
multi-token prediction
engine
v1.0.0
provider
openrouter
category call budgetreasoningtotal
Tool Calling4.1K/ high8.2K/ call
Structured Output2.0K/ medium4.1K/ call
RAG / Retrieval QA2.0K/ medium4.1K/ call
Context Recall2.0K/ medium4.1K/ call
Coding4.1K/ high8.2K/ call
Reasoning & Math4.1K/ high8.2K/ call
Instruction Following2.0K/ medium4.1K/ call
Classification2.0K/ medium4.1K/ call
Summarization2.0K/ medium4.1K/ call
run this buildOpenRouterhosted
curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"deepseek/deepseek-v4.1-flash","messages":[{"role":"user","content":"Hello"}]}'

Hosted API — not self-hostable. This is the call the benchmark made; try it live in the Playground.

measured

How it was measured

latency
3578616 ms
cost
$0.7017
memory samples

tok/s and latency measure the scored generation window; per-test figures above are the readings for each case. Memory (VRAM, unified RAM, or host RAM) is the peak footprint polled throughout the run, or blank when no probe could attribute it — never a hand-typed number.

recipe
prompts → hashes

Reproduce this run

The private prompts never leave the suite. What’s public is the command, the pinned suite, and the hashes that stand in for the tests — enough to re-run the exact config against your own copy of the suite.

command
npm run engine -- run --provider openrouter --model deepseek/deepseek-v4.1-flash --suite suites/starter.suite.json --name 'DeepSeek V4.1 Flash'
suite hash
config hash
suite pinned to
starter@v1