DeepSeek: DeepSeek V4 Flash 0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.

Context
1.0M
Max output
944K
Input price
$0.12/1M tokens
Output price
$0.24/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDdeepseek/deepseek-v4-flash-0731
Provider OpenRouter
Creator DeepSeek
Familydeepseek
License—
Status—
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output944K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.12
Output
$0.24
Cache write
—
Cache read
$0.02
Batch in
—
Batch out
—

Family Comparison: deepseek

ModelContextMax outPricing
DeepSeek: DeepSeek V4 Flash 0731 (free)1.0M393K—
DeepSeek: DeepSeek V4 Flash (free)1.0M384K—
DeepSeek: DeepSeek Flash Latest1.0M944K$0.03$1.14
DeepSeek: DeepSeek V4 Flash Latest1.0M944K$0.04$0.15
DeepSeek: DeepSeek V4.1 Flash1.0M944K$0.05$0.5
DeepSeek: DeepSeek V4.1 Flash (batch)1.0M384K$0.05$0.15
DeepSeek: DeepSeek V4 Flash 04231.0M944K$0.09$0.18
DeepSeek: DeepSeek Pro Latest1.0M393K$0.1$4
DeepSeek: DeepSeek V4 Flash 0731 (batch)1.0M944K$0.11$0.33
DeepSeek: DeepSeek V4 Flash Vision Exp (batch)1.0M944K$0.11$0.33
DeepSeek: DeepSeek V4 Flash 07311.0M944K$0.12$0.24
Nex AGI: DeepSeek V3.1 Nex N1131K164K$0.14$0.5
DeepSeek: DeepSeek V4 Flash Vision Exp1.0M262K$0.22$0.65
DeepSeek: DeepSeek V3.1 Terminus164K147K$0.27$1
DeepSeek: DeepSeek V3.2 Exp164K147K$0.27$0.41
DeepSeek: DeepSeek V3.2164K66K$0.28$0.42
DeepSeek: DeepSeek V3.2 Speciale164K164K$0.29$0.43
DeepSeek: DeepSeek V4.1 Flash 10171.0M393K$0.3$1.2
DeepSeek: DeepSeek V4 Pro 0813 (batch)1.0M944K$0.66$1.98
DeepSeek: DeepSeek V4 Pro 04231.0M384K$0.82$1.63
DeepSeek: DeepSeek V4 Pro 08131.0M393K$1.32$3.96

API

GET/v1/models/openrouter/deepseek/deepseek-v4-flash-0731

DeepSeek: DeepSeek V4 Flash 0731

deepseek/deepseek-v4-flash-0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.

Changes · 37 entries
deepseek/deepseek-v4-flash-0731createca7a400Nov 2, 2026, 03:02 AM
deepseek/deepseek-v4-flash-0731updateb2f45bfOct 29, 2026, 03:29 AM
max_output_tokens131072→943718
pricinginput$0.44→$0.119output$1.32→$0.238cached input$0.014→$0.024
deepseek/deepseek-v4-flash-0731update42a9895Oct 20, 2026, 06:39 AM
max_output_tokens943718→131072
pricinginput$0.15→$0.44output$0.15→$1.32cached input$0.042→$0.014
deepseek/deepseek-v4-flash-0731update49ce653Oct 19, 2026, 06:45 AM
pricinginput$0.1→$0.15output$0.3→$0.15cached input$0.03→$0.042
deepseek/deepseek-v4-flash-0731update63ba2aaOct 18, 2026, 06:34 AM
pricinginput$0.017→$0.1output$0.965→$0.3cached input$0.003→$0.03
deepseek/deepseek-v4-flash-0731update03ad82bOct 17, 2026, 06:33 AM
pricinginput$0.011→$0.017output$1.28→$0.965cached input$0.011→$0.003
deepseek/deepseek-v4-flash-0731updatebcf2693Oct 16, 2026, 06:36 AM
pricinginput$0.016→$0.011output$0.64→$1.28cached input$0.016→$0.011
deepseek/deepseek-v4-flash-0731updateceebcb8Oct 12, 2026, 06:56 AM
pricinginput$0.018→$0.016cached input$0.018→$0.016
deepseek/deepseek-v4-flash-0731updatedcc4383Oct 11, 2026, 06:38 AM
pricinginput$0.006→$0.018output$1.28→$0.64cached input$0.006→$0.018
deepseek/deepseek-v4-flash-0731updatec3d6504Oct 10, 2026, 06:38 AM
pricinginput$0.014→$0.006cached input$0.014→$0.006
deepseek/deepseek-v4-flash-0731update70614e7Oct 9, 2026, 06:39 AM
pricinginput$0.005→$0.014cached input$0.005→$0.014
deepseek/deepseek-v4-flash-0731updateda0e420Oct 8, 2026, 06:41 AM
pricinginput$0.018→$0.005cached input$0.018→$0.005
deepseek/deepseek-v4-flash-0731updateb61df6aOct 7, 2026, 06:39 AM
pricinginput$0.009→$0.018cached input$0.009→$0.018
deepseek/deepseek-v4-flash-0731update00710a0Oct 6, 2026, 06:38 AM
pricinginput$0.015→$0.009cached input$0.015→$0.009
deepseek/deepseek-v4-flash-0731update8c3d4a3Oct 4, 2026, 08:18 AM
pricinginput$0.017→$0.015
deepseek/deepseek-v4-flash-0731update02333c9Oct 3, 2026, 06:38 AM
pricinginput$0.008→$0.017cached input$0.008→$0.015
deepseek/deepseek-v4-flash-0731update2b89bf1Oct 2, 2026, 06:39 AM
pricinginput$0.017→$0.008cached input$0.017→$0.008
deepseek/deepseek-v4-flash-0731update8c801e2Oct 1, 2026, 06:40 AM
pricinginput$0.01→$0.017cached input$0.01→$0.017
deepseek/deepseek-v4-flash-0731update6e8bf55Sep 30, 2026, 06:40 AM
context_window1310720→1048576
pricinginput$0.018→$0.01output$0.32→$1.28cached input$0.018→$0.01
deepseek/deepseek-v4-flash-0731update1a66bb0Sep 29, 2026, 06:40 AM
pricinginput$0.021→$0.018cached input$0.016→$0.018
deepseek/deepseek-v4-flash-0731update9cb03f8Sep 26, 2026, 06:38 AM
pricinginput$0.03→$0.021
deepseek/deepseek-v4-flash-0731update118451aSep 24, 2026, 07:08 AM
pricinginput$0.04→$0.03output$0.64→$0.32
deepseek/deepseek-v4-flash-0731updatef13f134Sep 22, 2026, 06:39 AM
pricingoutput$0.16→$0.64
deepseek/deepseek-v4-flash-0731updateaf38e5cSep 21, 2026, 06:49 AM
pricingoutput$0.08→$0.16
deepseek/deepseek-v4-flash-0731update7bc8de4Sep 20, 2026, 06:33 AM
pricinginput$0.065→$0.04output$0.18→$0.08
deepseek/deepseek-v4-flash-0731update3170597Sep 19, 2026, 06:34 AM
pricinginput$0.06→$0.065output$0.12→$0.18cached input$0.012→$0.016
deepseek/deepseek-v4-flash-0731update40decdeSep 16, 2026, 06:38 AM
pricinginput$0.055→$0.06output$0.11→$0.12cached input$0.011→$0.012
deepseek/deepseek-v4-flash-0731updatea6d63d7Sep 15, 2026, 06:39 AM
pricinginput$0.06→$0.055output$0.12→$0.11cached input$0.012→$0.011
deepseek/deepseek-v4-flash-0731update20b7699Sep 14, 2026, 06:48 AM
pricinginput$0.04→$0.06output$0.08→$0.12cached input$0.008→$0.012
deepseek/deepseek-v4-flash-0731update265df08Sep 12, 2026, 06:33 AM
pricinginput$0.065→$0.04output$0.18→$0.08cached input$0.016→$0.008
deepseek/deepseek-v4-flash-0731update165fbc2Sep 8, 2026, 06:37 AM
max_output_tokens131072→943718
pricinginput$0.14→$0.065output$0.28→$0.18cached input$0.028→$0.016
deepseek/deepseek-v4-flash-0731updatea5ce2fdSep 7, 2026, 06:48 AM
max_output_tokens943718→131072
pricinginput$0.065→$0.14output$0.18→$0.28cached input$0.016→$0.028
deepseek/deepseek-v4-flash-0731updatee3d7dedAug 31, 2026, 04:13 AM
context_window1048576→1310720
max_output_tokens393216→943718
pricinginput$0.14→$0.065output$0.28→$0.18cached input$0.028→$0.016
deepseek/deepseek-v4-flash-0731updatebe35184Aug 17, 2026, 04:02 AM
max_output_tokens384000→393216
pricinginput$0.08→$0.14output$0.18→$0.28cached input$0.016→$0.028
deepseek/deepseek-v4-flash-0731update3cddff5Aug 13, 2026, 02:54 AM
max_output_tokens65536→384000
pricinginput$0.09→$0.08cached input$0.018→$0.016
deepseek/deepseek-v4-flash-0731update86db01cAug 2, 2026, 08:20 AM
max_output_tokens384000→65536
pricinginput$0.14→$0.09output$0.28→$0.18cached input$0.003→$0.018
deepseek/deepseek-v4-flash-0731createc67ed84Jul 31, 2026, 10:28 AM