{"id":266626,"date":"2026-10-14T11:46:48","date_gmt":"2026-10-14T02:46:48","guid":{"rendered":"https:\/\/designcopy.net\/en\/?p=266626"},"modified":"2026-10-14T11:46:48","modified_gmt":"2026-10-14T02:46:48","slug":"batch-api-claude-vs-openai-vs-gemini-bulk-seo-content-2026","status":"publish","type":"post","link":"https:\/\/designcopy.net\/en\/batch-api-claude-vs-openai-vs-gemini-bulk-seo-content-2026\/","title":{"rendered":"Batch APIs: Claude vs OpenAI vs Gemini for Bulk SEO Content"},"content":{"rendered":"<p><title>Batch APIs: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Claude_(language_model)\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Claude<\/a> vs <a href=\"https:\/\/openai.com\/\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">OpenAI<\/a> vs Gemini for Bulk SEO Content<\/title><\/p>\n<p class=\"updated\">Last updated: October 2026<\/p>\n<div style=\"background:#f3e5f5;border:2px solid #9c27b0;padding:20px;margin:0 0 24px 0;border-radius:8px;\">\n<strong style=\"color:#6a1b9a;font-size:1.1em;\">Quick Answer:<\/strong><\/p>\n<ul style=\"margin:10px 0 0 0;padding-left:20px;line-height:1.8;\">\n<li><strong>All three batch APIs charge 50% of the standard price<\/strong> for work that can wait up to 24 hours.<\/li>\n<li><strong>Request caps differ sharply<\/strong>: Claude takes 100,000 requests or 256 MB, OpenAI 50,000 requests or 200 MB, Gemini 2 GB per input file.<\/li>\n<li><strong>Results come back in any order<\/strong> on Claude and OpenAI, so every request needs a custom_id you can join on.<\/li>\n<li><strong>Retention varies<\/strong>: Claude keeps results 29 days, OpenAI output files 30 days, Gemini 6 weeks.<\/li>\n<\/ul>\n<\/div>\n<p>A bulk SEO pipeline does not need a title tag in two seconds. It needs 3,000 of them for the lowest bill.<\/p>\n<p>Meta descriptions, FAQ blocks, product copy and internal link suggestions all tolerate a wait. That is the workload every provider discounts by half.<\/p>\n<h2>How Do the Three Batch APIs Compare on Limits and Price?<\/h2>\n<p>The discount is identical. The ceilings are not, and they decide how many batches you have to split a site into.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:20px 0;\">\n<thead>\n<tr style=\"background:#1a237e;color:#fff;\">\n<th style=\"padding:10px;text-align:left;\">Limit<\/th>\n<th style=\"padding:10px;text-align:left;\">Claude<\/th>\n<th style=\"padding:10px;text-align:left;\">OpenAI<\/th>\n<th style=\"padding:10px;text-align:left;\">Gemini<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"padding:10px;\">Discount<\/td>\n<td style=\"padding:10px;\">50%<\/td>\n<td style=\"padding:10px;\">50%<\/td>\n<td style=\"padding:10px;\">50%<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"padding:10px;\">Max per batch<\/td>\n<td style=\"padding:10px;\">100,000 requests or 256 MB<\/td>\n<td style=\"padding:10px;\">50,000 requests, 200 MB file<\/td>\n<td style=\"padding:10px;\">2 GB input file<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"padding:10px;\">Window<\/td>\n<td style=\"padding:10px;\">24 hours, most under 1 hour<\/td>\n<td style=\"padding:10px;\">24h, fixed<\/td>\n<td style=\"padding:10px;\">Target 24 hours, expires at 48<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"padding:10px;\">Input format<\/td>\n<td style=\"padding:10px;\">Requests array<\/td>\n<td style=\"padding:10px;\">JSONL file<\/td>\n<td style=\"padding:10px;\">Inline under 20 MB, or JSONL<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;\">Results kept<\/td>\n<td style=\"padding:10px;\">29 days<\/td>\n<td style=\"padding:10px;\">30 days<\/td>\n<td style=\"padding:10px;\">6 weeks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Figures come from <a href=\"https:\/\/platform.claude.com\/docs\/en\/build-with-claude\/batch-processing\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Anthropic&#8217;s batch processing documentation<\/a>, <a href=\"https:\/\/developers.openai.com\/api\/docs\/guides\/batch\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">OpenAI&#8217;s Batch guide<\/a> and <a href=\"https:\/\/ai.google.dev\/gemini-api\/docs\/batch-api\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Google&#8217;s Gemini Batch API page<\/a>, read in October 2026.<\/p>\n<div style=\"background:#e8f5e9;border-left:4px solid #4caf50;padding:16px;margin:20px 0;\">\n<strong style=\"color:#2e7d32;\">Pro Tip:<\/strong><\/p>\n<p style=\"margin:8px 0 0 0;\">A 600-page site fits in one batch on every provider. The limits start to matter when you batch per-keyword FAQ generation across several sites.<\/p>\n<\/div>\n<figure style=\"margin:24px 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/designcopy.net\/wp-content\/uploads\/2026\/10\/batch-api-claude-vs-openai-vs-gemini-bulk-seo-content-2026-internal-1-hero.jpg\" alt=\"How Do the Three Batch APIs Compare on Limits and Price?\" style=\"max-width:100%;height:auto;border-radius:8px;\" loading=\"lazy\" title=\"\"><\/figure>\n<h2>What Does a Batch Actually Cost Next to a Live Call?<\/h2>\n<p><a href=\"https:\/\/www.anthropic.com\/\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Anthropic<\/a> lists batch prices per model. Claude Sonnet 5.5 is $1 per million input tokens and $5 per million output tokens, and Haiku 4.5 is $0.50 and $2.50.<\/p>\n<p>Take 2,000 meta descriptions at roughly 600 input and 120 output tokens each. That is 1.2M input and 0.24M output tokens.<\/p>\n<p>On Sonnet 5.5 batch pricing that is $1.20 plus $1.20, or $2.40 in total. Check the arithmetic against your own token counts before you budget from it.<\/p>\n<p>OpenAI and Google state the 50% rule but price per model, so look up your model&#8217;s batch rate rather than halving a number from memory.<\/p>\n<figure style=\"margin:24px 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/designcopy.net\/wp-content\/uploads\/2026\/10\/batch-api-claude-vs-openai-vs-gemini-bulk-seo-content-2026-internal-2-hero.jpg\" alt=\"What Does a Batch Actually Cost Next to a Live Call?\" style=\"max-width:100%;height:auto;border-radius:8px;\" loading=\"lazy\" title=\"\"><\/figure>\n<h2>Why Do Batch Results Come Back in the Wrong Order?<\/h2>\n<p>Because requests are processed independently and concurrently. Anthropic&#8217;s documentation says results can be returned in any order, and OpenAI warns that output line order may not match input order.<\/p>\n<p>Every request therefore needs an ID you can join on. Claude requires a custom_id of 1 to 64 characters matching <code>^[a-zA-Z0-9_-]{1,64}$<\/code>.<\/p>\n<p>Use the WordPress post ID plus the field name, such as <code>p4821-meta<\/code>. A slug with a dot or a space is rejected.<\/p>\n<div style=\"background:#fff3e0;border-left:4px solid #ff9800;padding:16px;margin:20px 0;\">\n<strong style=\"color:#e65100;\">Warning:<\/strong><\/p>\n<p style=\"margin:8px 0 0 0;\">Never write results back by line position. One errored request shifts every row below it, and you publish a meta description onto the wrong post.<\/p>\n<\/div>\n<figure style=\"margin:24px 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/designcopy.net\/wp-content\/uploads\/2026\/10\/batch-api-claude-vs-openai-vs-gemini-bulk-seo-content-2026-internal-3-hero.jpg\" alt=\"Why Do Batch Results Come Back in the Wrong Order?\" style=\"max-width:100%;height:auto;border-radius:8px;\" loading=\"lazy\" title=\"\"><\/figure>\n<h2>How Do You Handle Errored and Expired Requests?<\/h2>\n<p>Claude reports four outcomes per request: succeeded, errored, canceled and expired. Errored, canceled and expired requests are not billed, per Anthropic&#8217;s documentation.<\/p>\n<p>OpenAI sends failures to a separate error file named by <code>error_file_id<\/code>, and expired requests carry the <code>batch_expired<\/code> code. Gemini ends a job in one of JOB_STATE_SUCCEEDED, FAILED, CANCELLED or EXPIRED.<\/p>\n<p>Loop over the output, collect every ID that did not succeed, and resubmit only those as a smaller batch. Do not rerun the whole file.<\/p>\n<div style=\"background:#e8f5e9;border-left:4px solid #4caf50;padding:16px;margin:20px 0;\">\n<strong style=\"color:#2e7d32;\">Pro Tip:<\/strong><\/p>\n<p style=\"margin:8px 0 0 0;\">Store the ID-to-post map before you submit. If the batch expires you need it to rebuild the retry set without re-reading the site.<\/p>\n<\/div>\n<h2>Does Prompt Caching Still Work Inside a Batch?<\/h2>\n<p>On Claude, yes, but only on a best-effort basis. Anthropic notes that batch requests run concurrently and in any order, so cache hits are not guaranteed.<\/p>\n<p>Because a batch can take longer than five minutes, the documentation suggests the 1-hour cache duration when requests share a long prefix such as a style guide. Gemini says context caching is supported at standard caching rates.<\/p>\n<p>Our comparison of <a href=\"\/en\/prompt-caching-claude-vs-openai-vs-gemini-seo-pipeline-cost-2026\/\" data-wpel-link=\"internal\" rel=\"follow noopener noreferrer\" class=\"wpel-icon-right\">prompt caching across Claude, OpenAI and Gemini<i class=\"wpel-icon dashicons-before dashicons-admin-page\" aria-hidden=\"true\"><\/i><\/a> covers the prefix rules in more detail.<\/p>\n<blockquote style=\"border-left:4px solid #9e9e9e;background:#f5f5f5;margin:20px 0;padding:14px 18px;\">\n<p style=\"margin:0;\">Batch results can be returned in any order, and may not match the ordering of requests when the batch was created.<\/p>\n<p style=\"margin:8px 0 0 0;\">&#8211; Per Anthropic&#8217;s published batch processing documentation<\/p>\n<\/blockquote>\n<div style=\"background:#e3f2fd;border:2px solid #1976d2;padding:20px;margin:20px 0;border-radius:8px;\">\n<strong style=\"color:#0d47a1;\">Key Takeaway:<\/strong><\/p>\n<p style=\"margin:8px 0 0 0;\">Use a batch API for any SEO generation job that can wait a day. The 50% discount is the same everywhere, so choose on limits, retention and the model you already trust.<\/p>\n<p style=\"margin:8px 0 0 0;\">Key every request with a stable ID, retry only the failures, and download results before the retention window closes.<\/p>\n<\/div>\n<h2>Frequently Asked Questions<\/h2>\n<div style=\"border-bottom:1px solid #e2e8f0;padding:16px 0;\">\n<h3>How much cheaper is a batch API than a live call?<\/h3>\n<p>All three providers state a 50% discount. <a href=\"https:\/\/developers.openai.com\/api\/docs\/guides\/batch\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">OpenAI&#8217;s Batch guide<\/a> and Google&#8217;s Gemini Batch API page both use the 50% figure.<\/p>\n<\/div>\n<div style=\"border-bottom:1px solid #e2e8f0;padding:16px 0;\">\n<h3>How long does a batch take?<\/h3>\n<p><a href=\"https:\/\/platform.claude.com\/docs\/en\/build-with-claude\/batch-processing\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Anthropic&#8217;s documentation<\/a> says most batches finish within 1 hour and expire after 24. OpenAI uses a fixed 24h window. Gemini targets 24 hours and expires jobs at 48.<\/p>\n<\/div>\n<div style=\"border-bottom:1px solid #e2e8f0;padding:16px 0;\">\n<h3>Can I match results to inputs by position?<\/h3>\n<p>No. Both Claude and OpenAI say output order may differ from input order. Join on custom_id instead.<\/p>\n<\/div>\n<div style=\"border-bottom:1px solid #e2e8f0;padding:16px 0;\">\n<h3>Am I billed for requests that fail or expire?<\/h3>\n<p>On Claude, errored, canceled and expired requests are not billed, per <a href=\"https:\/\/platform.claude.com\/docs\/en\/build-with-claude\/batch-processing\" target=\"_blank\" rel=\"noopener nofollow external noreferrer\" data-wpel-link=\"external\">Anthropic&#8217;s batch documentation<\/a>. Check the billing terms of the other two before relying on the same behavior.<\/p>\n<\/div>\n<div style=\"border-bottom:1px solid #e2e8f0;padding:16px 0;\">\n<h3>How long can I download results?<\/h3>\n<p>Claude keeps results for 29 days after creation and OpenAI deletes output files 30 days after completion. Gemini stores results for 6 weeks.<\/p>\n<\/div>\n<hr \/>\n<p><em>DesignCopy Editorial Team<\/em><\/p>\n<p><script type=\"application\/ld+json\">\n[{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Article\", \"headline\": \"Batch APIs: Claude vs OpenAI vs Gemini for Bulk SEO Content\", \"description\": \"Claude, OpenAI and Gemini batch APIs compared for bulk SEO content: 50% discount, request caps, result ordering, retention and failed-request handling.\", \"datePublished\": \"2026-10-13\", \"dateModified\": \"2026-10-13\", \"author\": {\"@type\": \"Organization\", \"name\": \"DesignCopy Editorial Team\", \"url\": \"https:\/\/designcopy.net\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"DesignCopy\", \"url\": \"https:\/\/designcopy.net\"}}, {\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How much cheaper is a batch API than a live call?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"All three providers state a 50% discount. 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It needs 3,000 of them for the lowest bill.<\/p>\n","protected":false},"author":1,"featured_media":266630,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","footnotes":""},"categories":[1462],"tags":[],"class_list":["post-266626","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learning-center","et-has-post-format-content","et_post_format-et-post-format-standard"],"_links":{"self":[{"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/posts\/266626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/comments?post=266626"}],"version-history":[{"count":2,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/posts\/266626\/revisions"}],"predecessor-version":[{"id":266639,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/posts\/266626\/revisions\/266639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/media\/266630"}],"wp:attachment":[{"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/media?parent=266626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/categories?post=266626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/designcopy.net\/en\/wp-json\/wp\/v2\/tags?post=266626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}