---
title: "Batch: same model, later, cheaper · Undominated.ai"
canonical: https://undominated.ai/batch/
description: "73 standard models publish a batch twin. 62 of those twins charge exactly half the standard input rate."
---

# Batch: same model, later, cheaper · Undominated.ai

> 73 standard models publish a batch twin. 62 of those twins charge exactly half the standard input rate.

# Batch

Batch is the same model with later delivery. It is not a quality upgrade and is never ranked against a different model.

As of Oct 6, 2026, 73 standard models publish a batch twin. Where one seller sets both rates (27 models), batch is comparable: 24 charge exactly half the standard input rate and none is dearer. The other 46 have competing sellers. Their standard rate is the reference price, chosen across all of those sellers, so it is not necessarily the batch seller’s own rate and the ratio measures competition as well as delivery; 4 read as dearer for that reason.

Rates are headline input and output $/M from the catalogue, not a workload blend. Latency is not measured here. Sellers are counted distinctly, so a vendor listing one model under several of its own tiers counts once. A missing twin is a missing twin.

| Model | Standard in | Batch in | Batch / standard | Sellers | Standard out | Batch out |
| --- | --- | --- | --- | --- | --- | --- |
| [Gemini 3.7 Flash](/models/google__gemini-3.7-flash/) | $1.50 | $0.375 | 25% | 1 | $7.50 | $1.88 |
| [Gemini 3.8 Flash](/models/google__gemini-3.8-flash/) | $1.50 | $0.375 | 25% | 1 | $7.50 | $1.88 |
| [GPT-5.6 Sol](/models/openai__gpt-5.6-sol/) | $4.00 | $1.00 | 25% | 3 | $20.00 | $5.00 |
| [GPT-5.6 Sol Pro](/models/openai__gpt-5.6-sol-pro/) | $4.00 | $1.00 | 25% | 2 | $20.00 | $5.00 |
| [GLM 5.3 Flash](/models/z-ai__glm-5.3-flash/) | $0.150 | $0.060 | 40% | 30 | $0.500 | $0.200 |
| [Claude Fable 5](/models/anthropic__claude-fable-5/) | $10.00 | $5.00 | 50% | 5 | $50.00 | $25.00 |
| [Claude Fable 5.1](/models/anthropic__claude-fable-5.1/) | $10.00 | $5.00 | 50% | 4 | $50.00 | $25.00 |
| [Claude Haiku 4.5](/models/anthropic__claude-haiku-4.5/) | $1.00 | $0.500 | 50% | 4 | $5.00 | $2.50 |
| [Claude Opus 4.1](/models/anthropic__claude-opus-4.1/) | $15.00 | $7.50 | 50% | 1 | $75.00 | $37.50 |
| [Claude Opus 4.5](/models/anthropic__claude-opus-4.5/) | $5.00 | $2.50 | 50% | 5 | $25.00 | $12.50 |
| [Claude Opus 4.6](/models/anthropic__claude-opus-4.6/) | $5.00 | $2.50 | 50% | 5 | $25.00 | $12.50 |
| [Claude Opus 4.7](/models/anthropic__claude-opus-4.7/) | $5.00 | $2.50 | 50% | 5 | $25.00 | $12.50 |
| [Claude Opus 4.8](/models/anthropic__claude-opus-4.8/) | $5.00 | $2.50 | 50% | 5 | $25.00 | $12.50 |
| [Claude Opus 5](/models/anthropic__claude-opus-5/) | $5.00 | $2.50 | 50% | 5 | $25.00 | $12.50 |
| [Claude Opus 5.5](/models/anthropic__claude-opus-5.5/) | $4.00 | $2.00 | 50% | 5 | $20.00 | $10.00 |
| [Claude Sonnet 4.5](/models/anthropic__claude-sonnet-4.5/) | $3.00 | $1.50 | 50% | 5 | $15.00 | $7.50 |
| [Claude Sonnet 4.6](/models/anthropic__claude-sonnet-4.6/) | $3.00 | $1.50 | 50% | 5 | $15.00 | $7.50 |
| [Claude Sonnet 5](/models/anthropic__claude-sonnet-5/) | $2.00 | $1.00 | 50% | 5 | $10.00 | $5.00 |
| [Claude Sonnet 5.5](/models/anthropic__claude-sonnet-5.5/) | $2.00 | $1.00 | 50% | 5 | $10.00 | $5.00 |
| [Codestral 2508](/models/mistralai__codestral-2508/) | $0.300 | $0.150 | 50% | 1 | $0.900 | $0.450 |
| [Gemini 2.5 Flash](/models/google__gemini-2.5-flash/) | $0.300 | $0.150 | 50% | 1 | $2.50 | $1.25 |
| [Gemini 2.5 Flash Lite](/models/google__gemini-2.5-flash-lite/) | $0.100 | $0.050 | 50% | 1 | $0.400 | $0.200 |
| [Gemini 2.5 Pro](/models/google__gemini-2.5-pro/) | $1.25 | $0.625 | 50% | 1 | $10.00 | $5.00 |
| [Gemini 3 Flash Preview](/models/google__gemini-3-flash-preview/) | $0.500 | $0.250 | 50% | 1 | $3.00 | $1.50 |
| [Gemini 3.1 Flash Lite](/models/google__gemini-3.1-flash-lite/) | $0.250 | $0.125 | 50% | 1 | $1.50 | $0.750 |
| [Gemini 3.1 Pro Preview](/models/google__gemini-3.1-pro-preview/) | $2.00 | $1.00 | 50% | 1 | $12.00 | $6.00 |
| [Gemini 3.5 Flash](/models/google__gemini-3.5-flash/) | $1.50 | $0.750 | 50% | 1 | $9.00 | $4.50 |
| [Gemini 3.5 Flash Lite](/models/google__gemini-3.5-flash-lite/) | $0.300 | $0.150 | 50% | 1 | $2.50 | $1.25 |
| [Gemini 3.6 Flash](/models/google__gemini-3.6-flash/) | $0.750 | $0.375 | 50% | 1 | $3.75 | $1.88 |
| [GPT-3.5 Turbo](/models/openai__gpt-3.5-turbo/) | $0.500 | $0.250 | 50% | 1 | $1.50 | $0.750 |
| [GPT-4 Turbo](/models/openai__gpt-4-turbo/) | $10.00 | $5.00 | 50% | 1 | $30.00 | $15.00 |
| [GPT-4.1](/models/openai__gpt-4.1/) | $2.00 | $1.00 | 50% | 2 | $8.00 | $4.00 |
| [GPT-4.1 Mini](/models/openai__gpt-4.1-mini/) | $0.400 | $0.200 | 50% | 2 | $1.60 | $0.800 |
| [GPT-4.1 Nano](/models/openai__gpt-4.1-nano/) | $0.100 | $0.050 | 50% | 2 | $0.400 | $0.200 |
| [GPT-4o](/models/openai__gpt-4o/) | $2.50 | $1.25 | 50% | 2 | $10.00 | $5.00 |
| [GPT-4o-mini](/models/openai__gpt-4o-mini/) | $0.150 | $0.075 | 50% | 2 | $0.600 | $0.300 |
| [GPT-5](/models/openai__gpt-5/) | $1.25 | $0.625 | 50% | 2 | $10.00 | $5.00 |
| [GPT-5 Mini](/models/openai__gpt-5-mini/) | $0.250 | $0.125 | 50% | 2 | $2.00 | $1.00 |
| [GPT-5 Nano](/models/openai__gpt-5-nano/) | $0.050 | $0.025 | 50% | 2 | $0.400 | $0.200 |
| [GPT-5 Pro](/models/openai__gpt-5-pro/) | $15.00 | $7.50 | 50% | 1 | $120 | $60.00 |
| [GPT-5.1](/models/openai__gpt-5.1/) | $1.25 | $0.625 | 50% | 2 | $10.00 | $5.00 |
| [GPT-5.2](/models/openai__gpt-5.2/) | $1.75 | $0.875 | 50% | 2 | $14.00 | $7.00 |
| [GPT-5.2 Pro](/models/openai__gpt-5.2-pro/) | $21.00 | $10.50 | 50% | 1 | $168 | $84.00 |
| [GPT-5.4](/models/openai__gpt-5.4/) | $2.50 | $1.25 | 50% | 3 | $15.00 | $7.50 |
| [GPT-5.4 Mini](/models/openai__gpt-5.4-mini/) | $0.750 | $0.375 | 50% | 2 | $4.50 | $2.25 |
| [GPT-5.4 Nano](/models/openai__gpt-5.4-nano/) | $0.200 | $0.100 | 50% | 2 | $1.25 | $0.625 |
| [GPT-5.4 Pro](/models/openai__gpt-5.4-pro/) | $30.00 | $15.00 | 50% | 2 | $180 | $90.00 |
| [GPT-5.5](/models/openai__gpt-5.5/) | $5.00 | $2.50 | 50% | 3 | $30.00 | $15.00 |
| [GPT-5.5 Pro](/models/openai__gpt-5.5-pro/) | $30.00 | $15.00 | 50% | 1 | $180 | $90.00 |
| [GPT-5.6 Luna](/models/openai__gpt-5.6-luna/) | $0.200 | $0.100 | 50% | 3 | $1.20 | $0.600 |
| [GPT-5.6 Luna Pro](/models/openai__gpt-5.6-luna-pro/) | $0.200 | $0.100 | 50% | 2 | $1.20 | $0.600 |
| [GPT-5.6 Terra](/models/openai__gpt-5.6-terra/) | $2.00 | $1.00 | 50% | 3 | $12.00 | $6.00 |
| [GPT-5.6 Terra Pro](/models/openai__gpt-5.6-terra-pro/) | $2.00 | $1.00 | 50% | 2 | $12.00 | $6.00 |
| [GPT-6 Astra](/models/openai__gpt-6-astra/) | $10.00 | $5.00 | 50% | 3 | $50.00 | $25.00 |
| [GPT-6 Astra Pro](/models/openai__gpt-6-astra-pro/) | $10.00 | $5.00 | 50% | 2 | $50.00 | $25.00 |
| [GPT-6 Luna](/models/openai__gpt-6-luna/) | $0.100 | $0.050 | 50% | 3 | $0.500 | $0.250 |
| [GPT-6 Luna Pro](/models/openai__gpt-6-luna-pro/) | $0.100 | $0.050 | 50% | 2 | $0.500 | $0.250 |
| [GPT-6 Sol](/models/openai__gpt-6-sol/) | $2.00 | $1.00 | 50% | 3 | $10.00 | $5.00 |
| [GPT-6 Sol Pro](/models/openai__gpt-6-sol-pro/) | $2.00 | $1.00 | 50% | 2 | $10.00 | $5.00 |
| [Ministral 3 8B 2512](/models/mistralai__ministral-8b-2512/) | $0.150 | $0.075 | 50% | 1 | $0.150 | $0.075 |
| [Mistral Large 3 2512](/models/mistralai__mistral-large-2512/) | $0.500 | $0.250 | 50% | 1 | $1.50 | $0.750 |
| [Mistral Medium 3.1](/models/mistralai__mistral-medium-3.1/) | $0.400 | $0.200 | 50% | 1 | $2.00 | $1.00 |
| [Mistral Medium 3.5](/models/mistralai__mistral-medium-3-5/) | $1.50 | $0.750 | 50% | 1 | $7.50 | $3.75 |
| [Mistral Small 4](/models/mistralai__mistral-small-2603/) | $0.150 | $0.075 | 50% | 1 | $0.600 | $0.300 |
| [o3](/models/openai__o3/) | $2.00 | $1.00 | 50% | 1 | $8.00 | $4.00 |
| [o3 Mini](/models/openai__o3-mini/) | $1.10 | $0.550 | 50% | 1 | $4.40 | $2.20 |
| [o4 Mini](/models/openai__o4-mini/) | $1.10 | $0.550 | 50% | 1 | $4.40 | $2.20 |
| [Grok 4.3](/models/x-ai__grok-4.3/) | $1.25 | $1.00 | 80% | 1 | $2.50 | $2.00 |
| [gpt-oss-120b](/models/openai__gpt-oss-120b/) | $0.030 | $0.030 | 98.7% | 20 | $0.170 | $0.136 |
| [gpt-oss-20b](/models/openai__gpt-oss-20b/) | $0.018 | $0.024 | 133.3% | 11 | $0.090 | $0.112 |
| [DeepSeek V4.1 Flash](/models/deepseek__deepseek-v4.1-flash/) | $0.053 | $0.112 | 211.3% | 29 | $0.570 | $0.336 |
| [GLM 5.3](/models/z-ai__glm-5.3/) | $0.200 | $0.450 | 225% | 32 | $3.40 | $2.00 |
| [Kimi K3](/models/moonshotai__kimi-k3/) | $0.680 | $2.28 | 335.3% | 20 | $13.00 | $11.40 |

## Continue your investigation

 - [Compare cache economics](/cache/)
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- [Audit actual usage](/audit/)
- [Inspect billing conditions](/traps/)