Compare the models behind coding agents by release date and API price, with links to the providers’ documentation.
Recent additions, newest first. API prices in USD per million tokens; each card names its tier and checked date. Context tiers, caching, and tool fees can change the bill. Agent subscriptions are priced separately.
· OpenAI
$2 / $10
Input / output per 1M tokens · standard up to 272K input; cache reads $0.10; above 272K: $4 input / $15 output
Pricing checked October 2, 2026
The updated Sol model for coding and computer use, with a 1.05M-token context window. Use the Responses API for tool calling.
· Anthropic
$2 / $10
Input / output per 1M tokens · standard API; cache reads $0.20
Pricing checked October 2, 2026
A faster, lower-cost alternative to Opus 5.5, with a 1M-token context window.
· Anthropic
$4 / $20
Input / output per 1M tokens · standard API; cache reads $0.20
Pricing checked October 2, 2026
The newest Opus release. Standard input and output tokens cost 20% less than Opus 5.
· OpenAI
$2 / $10
Input / output per 1M tokens · standard; input up to 272K
Pricing checked October 2, 2026
The original GPT-6 Sol release. GPT-6.1 Sol is the newer version at the same standard input and output rates, with a lower cache-read price.
· OpenAI
$0.1 / $0.5
Input / output per 1M tokens · standard; input up to 272K
Pricing checked October 2, 2026
The lower-cost GPT-6 option for routine work and high-volume agent tasks.
· xAI
$2 / $6
Input / output per 1M tokens · standard; prompts below 200K
Pricing checked October 2, 2026
A 500K-context model with configurable reasoning. Its faster variant is available through Cursor and Grok Build.
· DeepSeek
$0.3 / $1.2
Input / output per 1M tokens · peak, uncached; off-peak $0.15 input / $0.60 output; cache hits $0.006 peak / $0.003 off-peak
Pricing checked October 2, 2026
An open-weights model with native image input and 1M context. The deepseek-flash API alias serves V4.1; legacy V4 Flash IDs also route here.
· OpenAI
$10 / $50
Input / output per 1M tokens · standard; input up to 272K
Pricing checked October 2, 2026
OpenAI’s most capable broadly available model, combining coding, computer use, and research in long-running tasks.
$0.75 / $3.75
Input / output per 1M tokens · standard promo through Dec 31, 2026; $1.50 input / $7.50 output from Jan 1, 2027
Pricing checked October 2, 2026
Google’s latest Flash model for software engineering and agent workflows. The separate Cyber variant has restricted access.
· Anthropic
$10 / $50
Input / output per 1M tokens · standard API
Pricing checked October 2, 2026
Generally available for coding and knowledge work. The related Mythos 5.1 model is limited to trusted-access programs.
Newest releases appear first. Every price has a checked or snapshot date. Turn on historical columns to see the August 26, 2026 benchmark snapshot and dated usage figures. An unscored model has no comparable result in this snapshot; it is not a zero score.
Looking for typed choices, scores, or classification? See the Decision Models Index.
| Model | Weights | Agent examples | ||
|---|---|---|---|---|
| GPT-6.1 SolNew releaseOpenAIThe updated Sol model for coding and computer use, with a 1.05M-token context window. Use the Responses API for tool calling.Model and pricingRelease log | $10 output$2 input / 1M tokensChecked October 2, 2026standard up to 272K input; cache reads $0.10; above 272K: $4 input / $15 output | Sep 29, 2026 | Closed | Codex |
| Claude Sonnet 5.5New releaseAnthropicA faster, lower-cost alternative to Opus 5.5, with a 1M-token context window.Model, release date, and pricing | $10 output$2 input / 1M tokensChecked October 2, 2026standard API; cache reads $0.20 | Sep 28, 2026 | Closed | Claude Code |
| Claude Opus 5.5New releaseAnthropicThe newest Opus release. Standard input and output tokens cost 20% less than Opus 5.Release and pricing | $20 output$4 input / 1M tokensChecked October 2, 2026standard API; cache reads $0.20 | Sep 22, 2026 | Closed | Claude Code |
| GPT-6 SolNew releaseOpenAIThe original GPT-6 Sol release. GPT-6.1 Sol is the newer version at the same standard input and output rates, with a lower cache-read price.Model and pricingRelease log | $10 output$2 input / 1M tokensChecked October 2, 2026standard; input up to 272K | Sep 22, 2026 | Closed | Codex |
| GPT-6 LunaNew releaseOpenAIThe lower-cost GPT-6 option for routine work and high-volume agent tasks.Model and pricingRelease log | $0.5 output$0.1 input / 1M tokensChecked October 2, 2026standard; input up to 272K | Sep 22, 2026 | Closed | Codex |
| Grok 4.7New releasexAIA 500K-context model with configurable reasoning. Its faster variant is available through Cursor and Grok Build.Release and pricingModel details | $6 output$2 input / 1M tokensChecked October 2, 2026standard; prompts below 200K | Sep 21, 2026 | Closed | Grok Build / Cursor |
| DeepSeek V4.1 FlashNew releaseDeepSeekAn open-weights model with native image input and 1M context. The deepseek-flash API alias serves V4.1; legacy V4 Flash IDs also route here.Release logAPI pricing and aliasesWeights and MIT license | $1.2 output$0.3 input / 1M tokensChecked October 2, 2026peak, uncached; off-peak $0.15 input / $0.60 output; cache hits $0.006 peak / $0.003 off-peak | Sep 10, 2026 | Open | DeepSeek Harness / OpenCode |
| GPT-6 AstraNew releaseOpenAIOpenAI’s most capable broadly available model, combining coding, computer use, and research in long-running tasks.Model and pricingRelease log | $50 output$10 input / 1M tokensChecked October 2, 2026standard; input up to 272K | Sep 3, 2026 | Closed | Codex |
| Gemini 3.8 FlashNew releaseGoogleGoogle’s latest Flash model for software engineering and agent workflows. The separate Cyber variant has restricted access.ReleaseAPI pricing | $3.75 output$0.75 input / 1M tokensChecked October 2, 2026standard promo through Dec 31, 2026; $1.50 input / $7.50 output from Jan 1, 2027 | Sep 2, 2026 | Closed | Gemini CLI / Antigravity |
| Claude Fable 5.1New releaseAnthropicGenerally available for coding and knowledge work. The related Mythos 5.1 model is limited to trusted-access programs.Release and pricingRelease date | $50 output$10 input / 1M tokensChecked October 2, 2026standard API | Sep 1, 2026 | Closed | Claude Code |
| GLM 5.3 Flash (Ox Alpha)Z.ai (revealed Aug 26)Released as Ox Alpha before being identified as GLM 5.3 Flash. Volume and availability notes refer to the August snapshot.Description from August snapshot | $0.25 output$0.075 input / 1M tokensSnapshot: August 26, 2026free during preview | Aug 20, 2026 | Partial | OpenCode (launch partner) |
| GLM 5.3Z.aiTop-10 coding at a fraction of frontier pricing; 5.2 weights are open, 5.3 Flash weights promised.Description from August snapshot | $4.4 output$1.4 input / 1M tokensSnapshot: August 26, 2026 | Aug 14, 2026 | Partial | ZCode |
| Gemini 3.7 FlashGoogleAugust's fastest riser: near-frontier coding at Flash prices.Description from August snapshot | $1.875 output$0.375 input / 1M tokensSnapshot: August 26, 202675% promo | Aug 13, 2026 | Closed | Gemini CLI / Antigravity |
| Grok 4.6xAICheapest model in the 76+ coding tier; AA flags it for cost efficiency.Description from August snapshot | $6 output$2 input / 1M tokensSnapshot: August 26, 2026 | Aug 12, 2026 | Closed | — |
| DeepSeek V4 ProDeepSeekDeepSeek's reasoning flagship, refreshed mid-August.Description from August snapshotDeepSeek continues to serve V4 Pro after its previously announced September 14 retirement date.Current API pricing and availability | $3.96 output$1.32 input / 1M tokensChecked October 2, 2026peak, uncached; off-peak $0.66 input / $1.98 output | Aug 12, 2026 | Partial | — |
| Muse Spark 1.2MetaMeta's return to the coding table, ahead of Sonnet 5 on the Coding Index.Description from August snapshot | $4.25 output$1.25 input / 1M tokensSnapshot: August 26, 2026 | Aug 5, 2026 | Closed | Muse Code |
| Qwen 3.8 MaxAlibabaAlibaba's frontier bid; the 2.4T-parameter open-weights sibling shipped Aug 12.Description from August snapshot | $6 output$2 input / 1M tokensSnapshot: August 26, 2026 | Aug 3, 2026 | Partial | Qwen Code |
| DeepSeek V4 FlashDeepSeekThe volume king of coding: usage spiked ~570% after the July 31 agent-tuned retrain.Description from August snapshotRetired on the DeepSeek API. Its legacy model ID now serves V4.1 Flash at V4.1 prices; the figures below are historical.Retirement and alias routing | $0.1 output$0.05 input / 1M tokensSnapshot: August 26, 2026approx; tiered | Jul 31, 2026 | Partial | — |
| Claude Opus 5Anthropic#1 on AA's Intelligence Index; Claude Code + Opus 5 also tops their Coding Agent Index.Description from August snapshot | $25 output$5 input / 1M tokensSnapshot: August 26, 2026 | Jul 24, 2026 | Closed | Claude Code |
| Kimi K3Moonshot AIThe open-weights frontier for coding, within ~2 points of Opus 5.Description from August snapshot | $15 output$3 input / 1M tokensSnapshot: August 26, 2026 | Jul 16, 2026 | Open | Kimi Code CLI |
| GPT-5.6 SolOpenAIHighest Coding Index score in the August 26 snapshot.Description from August snapshotAPI pricing | $20 output$4 input / 1M tokensChecked October 2, 2026standard promo at least through Nov 21, 2026; input up to 272K | Jul 9, 2026 | Closed | Codex |
| GPT-5.6 TerraOpenAICoding-skewed 5.6 sibling: top-5 coding despite mid-pack general intelligence.Description from August snapshot | $12 output$2 input / 1M tokensSnapshot: August 26, 2026 | Jul 9, 2026 | Closed | Codex |
| GPT-5.6 LunaOpenAIThe volume play: near-Sonnet coding scores at commodity pricing.Description from August snapshot | $1.2 output$0.2 input / 1M tokensSnapshot: August 26, 2026 | Jul 9, 2026 | Closed | Codex |
| Claude Sonnet 5AnthropicThe workhorse mid-tier for agentic coding at a fifth of Fable pricing.Description from August snapshot | $10 output$2 input / 1M tokensSnapshot: August 26, 2026 | Jun 30, 2026 | Closed | Claude Code |
| Claude Fable 5AnthropicThe hard-task tier: #2 on intelligence, priciest mainstream model per token.Description from August snapshot | $50 output$10 input / 1M tokensSnapshot: August 26, 2026 | Jun 9, 2026 | Closed | Claude Code |
| MiniMax M3MiniMaxOpen-weights long-horizon agent model with a 1M context at commodity cost.Description from August snapshotAPI pricing | $1.2 output$0.3 input / 1M tokensChecked October 2, 2026standard up to 512K input; above 512K: $0.60 input / $2.40 output; priority 1.5× | May 31, 2026 | Open | — |
| Composer 2.5CursorCursor’s own coding model. Standard and Fast variants have different token prices.Description from August snapshotCursor pricing and variants | $2.5 output$0.5 input / 1M tokensChecked October 2, 2026Cursor standard; default Fast variant is $3 input / $15 output | May 18, 2026 | Closed | Cursor |
| GPT-5.5OpenAIThe previous OpenAI flagship, still top-10 while the 5.6 family displaces it.Description from August snapshot | $30 output$5 input / 1M tokensSnapshot: August 26, 2026 | Apr 24, 2026 | Closed | Codex |
| Gemini 3.1 ProGoogleGoogle's Pro tier, now behind its own 3.7 Flash on both AA indexes.Description from August snapshot | $12 output$2 input / 1M tokensSnapshot: August 26, 2026 | Feb 19, 2026 | Closed | Gemini CLI / Antigravity |
| Claude Haiku 4.5AnthropicCheap, fast Claude tier for high-volume subagent and edit loops; aging against the 2026 field.Description from August snapshot | $5 output$1 input / 1M tokensSnapshot: August 26, 2026 | Oct 15, 2025 | Closed | Claude Code |
These observations describe July and August 2026. They do not establish current market share or model quality.
High-volume models in the August 26 OpenRouter snapshot. Routed token volume is not a measure of coding quality or total adoption.
| MiMo-V2.5 | Xiaomi | 9.92T/wk | #3 on OpenRouter; Pro variant scores 60.2 on the Coding Index (secondhand) |
| Hy3 | Tencent | 7.16T/wk | open weights; Coding Index 58.8 (secondhand) |
| Nemotron 3 Ultra (free) | NVIDIA | 5.4T/wk | free tier absorbing enormous routed volume |
| GLM 5.2 | Z.ai | 3.22T/wk | open weights (MIT); Coding Index 68.8; superseded by 5.3 but still huge |
| Solar Pro 4 | Upstage | 573B/wk | Aug 12 release; a sleeper climbing the rankings |
Share of model API spend observed among US businesses on Ramp in July 2026. This measures spending within Ramp’s coverage, not the whole market or coding-agent usage.
Emerald = Anthropic, grey = OpenAI. Delta vs the prior month. Source: Ramp AI Index. Limited to spending visible in this source. Missing providers and models should not be read as having zero spend.
The Amplifying Coding Score blends two independent signals: 60% Artificial Analysis Coding Index (Terminal-Bench v2.1 + SciCode, a capability benchmark) and 40% arena coding Elo (OpenLM's Arena+ coding column, Aug 22 snapshot, an LLM-judged preference signal). Each is min-max normalized within this cohort, so 100 is the cohort frontier and 0 the cohort floor, not absolute quality. A model missing one component is scored on the other alone and marked °; missing both means no score and no rank.
Coding Index is a third-party benchmark, quoted at the effort setting noted per row. These are not Amplifying product benchmarks. Scores marked † were recorded from public mirrors of the AA board. They have not been reverified against the current primary board. Releases after the snapshot and models without captured benchmark evidence carry no score. This does not mean that public results are unavailable today.
Tokens per week is OpenRouter's routed volume in the dated snapshot. It covers requests routed through OpenRouter, not the whole market. First-party usage (Claude Code on Anthropic's API, Codex on OpenAI's, Gemini CLI on Google's) never appears there, so frontier-lab volumes are heavily understated. Figures marked ‡ are from a July 22 community snapshot because the model has since left the visible top lists.
Biz spend is the model's share of API spend among US businesses on Ramp's card data (July 2026, per the Ramp AI Index). A dash means no figure was captured, not zero spend. Spending and routed token volume do not feed into the coding score.
Tokenizers differ per provider. Price per token alone does not tell you the cost of a completed task: reasoning, retries, caching, and tool calls all affect the bill. Test models with the same agent, task, and settings before drawing conclusions about cost or quality.
Curated, not exhaustive. Release details and benchmark snapshots are updated separately. Official sources are linked on the new releases; historical benchmark and adoption sources include: Artificial Analysis, OpenRouter rankings, OpenRouter models API, and recent release coverage.
The same model can behave differently with different tools, instructions, and permissions. The Coding Agents Index tracks publicly attributed agent activity: pull requests, commits, merge outcomes, and review patterns.